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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.131 by root, Thu Jan 4 00:53:54 2007 UTC vs.
Revision 1.533 by root, Thu Apr 29 07:59:17 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
20	use Digest::MD5;	55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
21	use Fcntl;	58	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
24	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
25		64
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
27		66
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		71
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE; # unused
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	121	our $NEXT_TICK;
45	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
46		130
47	our %CFG;	131	our %CFG;
48		132
49	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
51		136
52	our %MAP; # all maps	137	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	138	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	139	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	140
56	our %EXT_CORO;	141	# used to convert map paths into valid unix filenames by replacing / by ∕
		142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		143
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
57		153
58	binmode STDOUT;	154	binmode STDOUT;
59	binmode STDERR;	155	binmode STDERR;
60		156
61	# read virtual server time, if available	157	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
66	}	162	}
67		163
68	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		165
74	# a special map that is always available	166	mkdir $_
75	our $LINK_MAP;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		168
76	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
		170
		171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
77		187
78	#############################################################################	188	#############################################################################
79		189
80	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
81		191
…		…
88	=item $cf::RUNTIME	198	=item $cf::RUNTIME
89		199
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	201	every server tick.
92		202
93	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		206
95	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
97		211
98	=item $cf::NOW	212	=item $cf::NOW
99		213
100	The time of the last (current) server tick.	214	The time of the last (current) server tick.
101		215
102	=item $cf::TICK	216	=item $cf::TICK
103		217
104	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
105		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
106	=item %cf::CFG	230	=item %cf::CFG
107		231
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	233	from wherever your confdir points to.
110		234
		235	=item cf::wait_for_tick, cf::wait_for_tick_begin
		236
		237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		238	returns directly I<after> the tick processing (and consequently, can only wake one process
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
		252
111	=back	253	=back
112		254
113	=cut	255	=cut
114		256
115	BEGIN {	257	sub error(@) { LOG llevError, join "", @_ }
116	*CORE::GLOBAL::warn = sub {	258	sub warn (@) { LOG llevWarn , join "", @_ }
		259	sub info (@) { LOG llevInfo , join "", @_ }
		260	sub debug(@) { LOG llevDebug, join "", @_ }
		261	sub trace(@) { LOG llevTrace, join "", @_ }
		262
		263	$Coro::State::WARNHOOK = sub {
117	my $msg = join "", @_;	264	my $msg = join "", @_;
118	utf8::encode $msg;
119		265
120	$msg .= "\n"	266	$msg .= "\n"
121	unless $msg =~ /\n$/;	267	unless $msg =~ /\n$/;
122		268
123	LOG llevError, "cfperl: $msg";	269	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
124	};	270
125	}	271	LOG llevWarn, $msg;
		272	};
		273
		274	$Coro::State::DIEHOOK = sub {
		275	return unless $^S eq 0; # "eq", not "=="
		276
		277	error Carp::longmess $_[0];
		278
		279	if (in_main) {#d#
		280	error "DIEHOOK called in main context, Coro bug?\n";#d#
		281	return;#d#
		282	}#d#
		283
		284	# kill coroutine otherwise
		285	Coro::terminate
		286	};
126		287
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	288	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	289	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	290	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	291	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	292	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		293	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	294	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		295
134	# we bless all objects into (empty) derived classes to force a method lookup	296	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	297	# within the Safe compartment.
136	for my $pkg (qw(	298	for my $pkg (qw(
137	cf::global cf::attachable	299	cf::global cf::attachable
138	cf::object cf::object::player	300	cf::object cf::object::player
139	cf::client cf::player	301	cf::client cf::player
140	cf::arch cf::living	302	cf::arch cf::living
		303	cf::map cf::mapspace
141	cf::map cf::party cf::region	304	cf::party cf::region
142	)) {	305	)) {
143	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	306	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	307	}
146		308
147	$Event::DIED = sub {	309	$EV::DIED = sub {
148	warn "error in event callback: @_";	310	Carp::cluck "error in event callback: @_";
149	};	311	};
150		312
151	my %ext_pkg;	313	#############################################################################
152	my @exts;
153	my @hook;
154		314
155	=head2 UTILITY FUNCTIONS	315	=head2 UTILITY FUNCTIONS
156		316
157	=over 4	317	=over 4
158		318
159	=cut	319	=item dumpval $ref
160		320
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	321	=cut
162		322
		323	sub dumpval {
		324	eval {
		325	local $SIG{__DIE__};
		326	my $d;
		327	if (1) {
		328	$d = new Data::Dumper([$_[0]], ["*var"]);
		329	$d->Terse(1);
		330	$d->Indent(2);
		331	$d->Quotekeys(0);
		332	$d->Useqq(1);
		333	#$d->Bless(...);
		334	$d->Seen($_[1]) if @_ > 1;
		335	$d = $d->Dump();
		336	}
		337	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		338	$d
		339	} || "[unable to dump $_[0]: '$@']";
		340	}
		341
163	=item $ref = cf::from_json $json	342	=item $ref = cf::decode_json $json
164		343
165	Converts a JSON string into the corresponding perl data structure.	344	Converts a JSON string into the corresponding perl data structure.
166		345
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	346	=item $json = cf::encode_json $ref
175		347
176	Converts a perl data structure into its JSON representation.	348	Converts a perl data structure into its JSON representation.
177		349
178	=cut	350	=cut
179		351
180	sub to_json($) {	352	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		353
185	=item my $guard = cf::guard { BLOCK }	354	sub encode_json($) { $json_coder->encode ($_[0]) }
		355	sub decode_json($) { $json_coder->decode ($_[0]) }
186		356
187	Run the given callback when the guard object gets destroyed (useful for	357	=item cf::post_init { BLOCK }
188	coroutine cancellations).
189		358
190	You can call C<< ->cancel >> on the guard object to stop the block from	359	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
191	being executed.	360	but I<before> the server starts ticking again.
192		361
193	=cut	362	The cdoeblock will have a single boolean argument to indicate whether this
		363	is a reload or not.
194		364
195	sub guard(&) {	365	=cut
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198		366
199	sub cf::guard::cancel {	367	sub post_init(&) {
200	${$_[0]} = sub { };	368	push @POST_INIT, shift;
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}	369	}
206		370
207	=item cf::lock_wait $string	371	=item cf::lock_wait $string
208		372
209	Wait until the given lock is available. See cf::lock_acquire.	373	Wait until the given lock is available. See cf::lock_acquire.
210		374
211	=item my $lock = cf::lock_acquire $string	375	=item my $lock = cf::lock_acquire $string
212		376
213	Wait until the given lock is available and then acquires it and returns	377	Wait until the given lock is available and then acquires it and returns
214	a guard object. If the guard object gets destroyed (goes out of scope,	378	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	379	for example when the coroutine gets canceled), the lock is automatically
216	returned.	380	returned.
217		381
		382	Locks are *not* recursive, locking from the same coro twice results in a
		383	deadlocked coro.
		384
218	Lock names should begin with a unique identifier (for example, find_map	385	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and load_map uses map_load).	386	uses map_find and cf::map::load uses map_load).
220		387
221	=cut	388	=item $locked = cf::lock_active $string
222		389
223	our %LOCK;	390	Return true if the lock is currently active, i.e. somebody has locked it.
		391
		392	=cut
		393
		394	our $LOCKS = new Coro::SemaphoreSet;
224		395
225	sub lock_wait($) {	396	sub lock_wait($) {
226	my ($key) = @_;	397	$LOCKS->wait ($_[0]);
227
228	# wait for lock, if any
229	while ($LOCK{$key}) {
230	push @{ $LOCK{$key} }, $Coro::current;
231	Coro::schedule;
232	}
233	}	398	}
234		399
235	sub lock_acquire($) {	400	sub lock_acquire($) {
236	my ($key) = @_;	401	$LOCKS->guard ($_[0])
		402	}
237		403
238	# wait, to be sure we are not locked	404	sub lock_active($) {
239	lock_wait $key;	405	$LOCKS->count ($_[0]) < 1
		406	}
240		407
241	$LOCK{$key} = [];	408	sub freeze_mainloop {
		409	tick_inhibit_inc;
242		410
243	cf::guard {	411	&Guard::guard (\&tick_inhibit_dec);
244	# wake up all waiters, to be on the safe side	412	}
245	$_->ready for @{ delete $LOCK{$key} };	413
		414	=item cf::periodic $interval, $cb
		415
		416	Like EV::periodic, but randomly selects a starting point so that the actions
		417	get spread over time.
		418
		419	=cut
		420
		421	sub periodic($$) {
		422	my ($interval, $cb) = @_;
		423
		424	my $start = rand List::Util::min 180, $interval;
		425
		426	EV::periodic $start, $interval, 0, $cb
		427	}
		428
		429	=item cf::get_slot $time[, $priority[, $name]]
		430
		431	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		432	This call blocks and returns only when you have at least C<$time> seconds
		433	of cpu time till the next tick. The slot is only valid till the next cede.
		434
		435	The optional C<$name> can be used to identify the job to run. It might be
		436	used for statistical purposes and should identify the same time-class.
		437
		438	Useful for short background jobs.
		439
		440	=cut
		441
		442	our @SLOT_QUEUE;
		443	our $SLOT_QUEUE;
		444	our $SLOT_DECAY = 0.9;
		445
		446	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		447	$SLOT_QUEUE = Coro::async {
		448	$Coro::current->desc ("timeslot manager");
		449
		450	my $signal = new Coro::Signal;
		451	my $busy;
		452
		453	while () {
		454	next_job:
		455
		456	my $avail = cf::till_tick;
		457
		458	for (0 .. $#SLOT_QUEUE) {
		459	if ($SLOT_QUEUE[$_][0] <= $avail) {
		460	$busy = 0;
		461	my $job = splice @SLOT_QUEUE, $_, 1, ();
		462	$job->[2]->send;
		463	Coro::cede;
		464	goto next_job;
		465	} else {
		466	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		467	}
		468	}
		469
		470	if (@SLOT_QUEUE) {
		471	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		472	push @cf::WAIT_FOR_TICK, $signal;
		473	$signal->wait;
		474	} else {
		475	$busy = 0;
		476	Coro::schedule;
		477	}
246	}	478	}
		479	};
		480
		481	sub get_slot($;$$) {
		482	return if tick_inhibit || $Coro::current == $Coro::main;
		483
		484	my ($time, $pri, $name) = @_;
		485
		486	$time = clamp $time, 0.01, $TICK * .6;
		487
		488	my $sig = new Coro::Signal;
		489
		490	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		491	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		492	$SLOT_QUEUE->ready;
		493	$sig->wait;
247	}	494	}
248		495
249	=item cf::async { BLOCK }	496	=item cf::async { BLOCK }
250		497
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	498	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	499	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		500	thing you are allowed to do is call C<prio> on it.
253		501
254	=cut	502	=cut
255		503
256	sub async(&) {	504	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		505
265	=item cf::sync_job { BLOCK }	506	=item cf::sync_job { BLOCK }
266		507
267	The design of crossfire+ requires that the main coro ($Coro::main) is	508	The design of Deliantra requires that the main coroutine ($Coro::main)
268	always able to handle events or runnable, as crossfire+ is only partly	509	is always able to handle events or runnable, as Deliantra is only
269	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	510	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		511	acceptable.
270		512
271	If it must be done, put the blocking parts into C<sync_job>. This will run	513	If it must be done, put the blocking parts into C<sync_job>. This will run
272	the given BLOCK in another coroutine while waiting for the result. The	514	the given BLOCK in another coroutine while waiting for the result. The
273	server will be frozen during this time, so the block should either finish	515	server will be frozen during this time, so the block should either finish
274	fast or be very important.	516	fast or be very important.
…		…
277		519
278	sub sync_job(&) {	520	sub sync_job(&) {
279	my ($job) = @_;	521	my ($job) = @_;
280		522
281	if ($Coro::current == $Coro::main) {	523	if ($Coro::current == $Coro::main) {
		524	my $time = AE::time;
		525
282	# this is the main coro, too bad, we have to block	526	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	527	# till the operation succeeds, freezing the server :/
284		528
285	# TODO: use suspend/resume instead	529	LOG llevError, Carp::longmess "sync job";#d#
286	# (but this is cancel-safe)	530
287	local $FREEZE = 1;	531	my $freeze_guard = freeze_mainloop;
288		532
289	my $busy = 1;	533	my $busy = 1;
290	my @res;	534	my @res;
291		535
292	(Coro::async {	536	(async {
		537	$Coro::current->desc ("sync job coro");
293	@res = eval { $job->() };	538	@res = eval { $job->() };
294	warn $@ if $@;	539	error $@ if $@;
295	undef $busy;	540	undef $busy;
296	})->prio (Coro::PRIO_MAX);	541	})->prio (Coro::PRIO_MAX);
297		542
298	while ($busy) {	543	while ($busy) {
		544	if (Coro::nready) {
299	Coro::cede_notself;	545	Coro::cede_notself;
300	Event::one_event unless Coro::nready;	546	} else {
		547	EV::loop EV::LOOP_ONESHOT;
301	}	548	}
		549	}
		550
		551	my $time = AE::time - $time;
		552
		553	$TICK_START += $time; # do not account sync jobs to server load
302		554
303	wantarray ? @res : $res[0]	555	wantarray ? @res : $res[0]
304	} else {	556	} else {
305	# we are in another coroutine, how wonderful, everything just works	557	# we are in another coroutine, how wonderful, everything just works
306		558
307	$job->()	559	$job->()
308	}	560	}
309	}	561	}
310		562
311	=item $coro = cf::coro { BLOCK }	563	=item $coro = cf::async_ext { BLOCK }
312		564
313	Creates and returns a new coro. This coro is automcatially being canceled	565	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	566	extension calling this is being unloaded.
315		567
316	=cut	568	=cut
317		569
318	sub coro(&) {	570	sub async_ext(&) {
319	my $cb = shift;	571	my $cb = shift;
320		572
321	my $coro = &cf::async ($cb);	573	my $coro = &Coro::async ($cb);
322		574
323	$coro->on_destroy (sub {	575	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	576	delete $EXT_CORO{$coro+0};
325	});	577	});
326	$EXT_CORO{$coro+0} = $coro;	578	$EXT_CORO{$coro+0} = $coro;
327		579
328	$coro	580	$coro
329	}	581	}
330		582
331	sub write_runtime {	583	=item fork_call { }, $args
332	my $runtime = cf::localdir . "/runtime";
333		584
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	585	Executes the given code block with the given arguments in a seperate
335	or return;	586	process, returning the results. Everything must be serialisable with
		587	Coro::Storable. May, of course, block. Note that the executed sub may
		588	never block itself or use any form of event handling.
336		589
337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	590	=cut
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;
340		591
341	aio_fsync $fh	592	sub fork_call(&@) {
342	and return;	593	my ($cb, @args) = @_;
343		594
344	close $fh	595	# we seemingly have to make a local copy of the whole thing,
345	or return;	596	# otherwise perl prematurely frees the stuff :/
		597	# TODO: investigate and fix (likely this will be rather laborious)
346		598
347	aio_rename "$runtime~", $runtime	599	my @res = Coro::Util::fork_eval {
348	and return;	600	reset_signals;
		601	&$cb
		602	}, @args;
349		603
		604	wantarray ? @res : $res[-1]
		605	}
		606
		607	sub objinfo {
350	1	608	(
		609	"counter value" => cf::object::object_count,
		610	"objects created" => cf::object::create_count,
		611	"objects destroyed" => cf::object::destroy_count,
		612	"freelist size" => cf::object::free_count,
		613	"allocated objects" => cf::object::objects_size,
		614	"active objects" => cf::object::actives_size,
		615	)
		616	}
		617
		618	=item $coin = coin_from_name $name
		619
		620	=cut
		621
		622	our %coin_alias = (
		623	"silver" => "silvercoin",
		624	"silvercoin" => "silvercoin",
		625	"silvercoins" => "silvercoin",
		626	"gold" => "goldcoin",
		627	"goldcoin" => "goldcoin",
		628	"goldcoins" => "goldcoin",
		629	"platinum" => "platinacoin",
		630	"platinumcoin" => "platinacoin",
		631	"platinumcoins" => "platinacoin",
		632	"platina" => "platinacoin",
		633	"platinacoin" => "platinacoin",
		634	"platinacoins" => "platinacoin",
		635	"royalty" => "royalty",
		636	"royalties" => "royalty",
		637	);
		638
		639	sub coin_from_name($) {
		640	$coin_alias{$_[0]}
		641	? cf::arch::find $coin_alias{$_[0]}
		642	: undef
		643	}
		644
		645	=item $value = cf::db_get $family => $key
		646
		647	Returns a single value from the environment database.
		648
		649	=item cf::db_put $family => $key => $value
		650
		651	Stores the given C<$value> in the family. It can currently store binary
		652	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		653
		654	=item $db = cf::db_table "name"
		655
		656	Create and/or open a new database table. The string must not be "db" and must be unique
		657	within each server.
		658
		659	=cut
		660
		661	sub db_table($) {
		662	my ($name) = @_;
		663	my $db = BDB::db_create $DB_ENV;
		664
		665	eval {
		666	$db->set_flags (BDB::CHKSUM);
		667
		668	utf8::encode $name;
		669	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		670	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		671	cf::cleanup "db_open(db): $!" if $!;
		672	};
		673	cf::cleanup "db_open(db): $@" if $@;
		674
		675	$db
		676	}
		677
		678	our $DB;
		679
		680	sub db_init {
		681	cf::sync_job {
		682	$DB ||= db_table "db";
		683	};
		684	}
		685
		686	sub db_get($$) {
		687	my $key = "$_[0]/$_[1]";
		688
		689	cf::sync_job {
		690	BDB::db_get $DB, undef, $key, my $data;
		691
		692	$! ? ()
		693	: $data
		694	}
		695	}
		696
		697	sub db_put($$$) {
		698	BDB::dbreq_pri 4;
		699	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		700	}
		701
		702	=item cf::cache $id => [$paths...], $processversion => $process
		703
		704	Generic caching function that returns the value of the resource $id,
		705	caching and regenerating as required.
		706
		707	This function can block.
		708
		709	=cut
		710
		711	sub cache {
		712	my ($id, $src, $processversion, $process) = @_;
		713
		714	my $meta =
		715	join "\x00",
		716	$processversion,
		717	map {
		718	aio_stat $_
		719	and Carp::croak "$_: $!";
		720
		721	($_, (stat _)[7,9])
		722	} @$src;
		723
		724	my $dbmeta = db_get cache => "$id/meta";
		725	if ($dbmeta ne $meta) {
		726	# changed, we may need to process
		727
		728	my @data;
		729	my $md5;
		730
		731	for (0 .. $#$src) {
		732	0 <= aio_load $src->[$_], $data[$_]
		733	or Carp::croak "$src->[$_]: $!";
		734	}
		735
		736	# if processing is expensive, check
		737	# checksum first
		738	if (1) {
		739	$md5 =
		740	join "\x00",
		741	$processversion,
		742	map {
		743	cf::cede_to_tick;
		744	($src->[$_], Digest::MD5::md5_hex $data[$_])
		745	} 0.. $#$src;
		746
		747
		748	my $dbmd5 = db_get cache => "$id/md5";
		749	if ($dbmd5 eq $md5) {
		750	db_put cache => "$id/meta", $meta;
		751
		752	return db_get cache => "$id/data";
		753	}
		754	}
		755
		756	my $t1 = Time::HiRes::time;
		757	my $data = $process->(\@data);
		758	my $t2 = Time::HiRes::time;
		759
		760	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		761
		762	db_put cache => "$id/data", $data;
		763	db_put cache => "$id/md5" , $md5;
		764	db_put cache => "$id/meta", $meta;
		765
		766	return $data;
		767	}
		768
		769	db_get cache => "$id/data"
		770	}
		771
		772	=item cf::datalog type => key => value, ...
		773
		774	Log a datalog packet of the given type with the given key-value pairs.
		775
		776	=cut
		777
		778	sub datalog($@) {
		779	my ($type, %kv) = @_;
		780	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
351	}	781	}
352		782
353	=back	783	=back
354		784
355	=cut	785	=cut
356		786
357	#############################################################################	787	#############################################################################
358		788
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476
477	#############################################################################
478
479	=head2 ATTACHABLE OBJECTS	789	=head2 ATTACHABLE OBJECTS
480		790
481	Many objects in crossfire are so-called attachable objects. That means you can	791	Many objects in deliantra are so-called attachable objects. That means you can
482	attach callbacks/event handlers (a collection of which is called an "attachment")	792	attach callbacks/event handlers (a collection of which is called an "attachment")
483	to it. All such attachable objects support the following methods.	793	to it. All such attachable objects support the following methods.
484		794
485	In the following description, CLASS can be any of C<global>, C<object>	795	In the following description, CLASS can be any of C<global>, C<object>
486	C<player>, C<client> or C<map> (i.e. the attachable objects in	796	C<player>, C<client> or C<map> (i.e. the attachable objects in
487	crossfire+).	797	Deliantra).
488		798
489	=over 4	799	=over 4
490		800
491	=item $attachable->attach ($attachment, key => $value...)	801	=item $attachable->attach ($attachment, key => $value...)
492		802
…		…
536	=item cf::CLASS::attachment $name, ...	846	=item cf::CLASS::attachment $name, ...
537		847
538	Register an attachment by C<$name> through which attachable objects of the	848	Register an attachment by C<$name> through which attachable objects of the
539	given CLASS can refer to this attachment.	849	given CLASS can refer to this attachment.
540		850
541	Some classes such as crossfire maps and objects can specify attachments	851	Some classes such as deliantra maps and objects can specify attachments
542	that are attached at load/instantiate time, thus the need for a name.	852	that are attached at load/instantiate time, thus the need for a name.
543		853
544	These calls expect any number of the following handler/hook descriptions:	854	These calls expect any number of the following handler/hook descriptions:
545		855
546	=over 4	856	=over 4
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	916	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	917	our @CB_MAP = ();
608		918
609	my %attachment;	919	my %attachment;
610		920
		921	sub cf::attachable::thawer_merge {
		922	# simply override everything except _meta
		923	local $_[0]{_meta};
		924	%{$_[0]} = %{$_[1]};
		925	}
		926
611	sub _attach_cb($$$$) {	927	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	928	my ($registry, $event, $prio, $cb) = @_;
613		929
614	use sort 'stable';	930	use sort 'stable';
615		931
…		…
649	$registry = $CB_TYPE[$object_type] ||= [];	965	$registry = $CB_TYPE[$object_type] ||= [];
650		966
651	} elsif ($type eq "subtype") {	967	} elsif ($type eq "subtype") {
652	defined $object_type or Carp::croak "subtype specified without type";	968	defined $object_type or Carp::croak "subtype specified without type";
653	my $object_subtype = shift @arg;	969	my $object_subtype = shift @arg;
654	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	970	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
655		971
656	} elsif ($type eq "package") {	972	} elsif ($type eq "package") {
657	my $pkg = shift @arg;	973	my $pkg = shift @arg;
658		974
659	while (my ($name, $id) = each %cb_id) {	975	while (my ($name, $id) = each %cb_id) {
…		…
664		980
665	} elsif (exists $cb_id{$type}) {	981	} elsif (exists $cb_id{$type}) {
666	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	982	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
667		983
668	} elsif (ref $type) {	984	} elsif (ref $type) {
669	warn "attaching objects not supported, ignoring.\n";	985	error "attaching objects not supported, ignoring.\n";
670		986
671	} else {	987	} else {
672	shift @arg;	988	shift @arg;
673	warn "attach argument '$type' not supported, ignoring.\n";	989	error "attach argument '$type' not supported, ignoring.\n";
674	}	990	}
675	}	991	}
676	}	992	}
677		993
678	sub _object_attach {	994	sub _object_attach {
…		…
688	_attach $registry, $klass, @attach;	1004	_attach $registry, $klass, @attach;
689	}	1005	}
690		1006
691	$obj->{$name} = \%arg;	1007	$obj->{$name} = \%arg;
692	} else {	1008	} else {
693	warn "object uses attachment '$name' that is not available, postponing.\n";	1009	info "object uses attachment '$name' which is not available, postponing.\n";
694	}	1010	}
695		1011
696	$obj->{_attachment}{$name} = undef;	1012	$obj->{_attachment}{$name} = undef;
697	}	1013	}
698		1014
…		…
700	if (ref $_[0]) {	1016	if (ref $_[0]) {
701	_object_attach @_;	1017	_object_attach @_;
702	} else {	1018	} else {
703	_attach shift->_attach_registry, @_;	1019	_attach shift->_attach_registry, @_;
704	}	1020	}
		1021	_recalc_want;
705	};	1022	};
706		1023
707	# all those should be optimised	1024	# all those should be optimised
708	sub cf::attachable::detach {	1025	sub cf::attachable::detach {
709	my ($obj, $name) = @_;	1026	my ($obj, $name) = @_;
…		…
712	delete $obj->{_attachment}{$name};	1029	delete $obj->{_attachment}{$name};
713	reattach ($obj);	1030	reattach ($obj);
714	} else {	1031	} else {
715	Carp::croak "cannot, currently, detach class attachments";	1032	Carp::croak "cannot, currently, detach class attachments";
716	}	1033	}
		1034	_recalc_want;
717	};	1035	};
718		1036
719	sub cf::attachable::attached {	1037	sub cf::attachable::attached {
720	my ($obj, $name) = @_;	1038	my ($obj, $name) = @_;
721		1039
…		…
736	";	1054	";
737	die if $@;	1055	die if $@;
738	}	1056	}
739		1057
740	our $override;	1058	our $override;
741	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1059	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
742		1060
743	sub override {	1061	sub override {
744	$override = 1;	1062	$override = 1;
745	@invoke_results = ();	1063	@INVOKE_RESULTS = (@_);
746	}	1064	}
747		1065
748	sub do_invoke {	1066	sub do_invoke {
749	my $event = shift;	1067	my $event = shift;
750	my $callbacks = shift;	1068	my $callbacks = shift;
751		1069
752	@invoke_results = ();	1070	@INVOKE_RESULTS = ();
753		1071
754	local $override;	1072	local $override;
755		1073
756	for (@$callbacks) {	1074	for (@$callbacks) {
757	eval { &{$_->[1]} };	1075	eval { &{$_->[1]} };
758		1076
759	if ($@) {	1077	if ($@) {
760	warn "$@";
761	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1078	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
762	override;	1079	override;
763	}	1080	}
764		1081
765	return 1 if $override;	1082	return 1 if $override;
766	}	1083	}
767		1084
768	0	1085	0
769	}	1086	}
770		1087
771	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1088	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
772		1089
773	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1090	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
774		1091
775	Generate an object-specific event with the given arguments.	1092	Generate an object-specific event with the given arguments.
776		1093
777	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1094	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
778	removed in future versions), and there is no public API to access override	1095	removed in future versions), and there is no public API to access override
779	results (if you must, access C<@cf::invoke_results> directly).	1096	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
780		1097
781	=back	1098	=back
782		1099
783	=cut	1100	=cut
784		1101
785	#############################################################################	1102	#############################################################################
786	# object support	1103	# object support
		1104
		1105	sub _object_equal($$);
		1106	sub _object_equal($$) {
		1107	my ($a, $b) = @_;
		1108
		1109	return 0 unless (ref $a) eq (ref $b);
		1110
		1111	if ("HASH" eq ref $a) {
		1112	my @ka = keys %$a;
		1113	my @kb = keys %$b;
		1114
		1115	return 0 if @ka != @kb;
		1116
		1117	for (0 .. $#ka) {
		1118	return 0 unless $ka[$_] eq $kb[$_];
		1119	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1120	}
		1121
		1122	} elsif ("ARRAY" eq ref $a) {
		1123
		1124	return 0 if @$a != @$b;
		1125
		1126	for (0 .. $#$a) {
		1127	return 0 unless _object_equal $a->[$_], $b->[$_];
		1128	}
		1129
		1130	} elsif ($a ne $b) {
		1131	return 0;
		1132	}
		1133
		1134	1
		1135	}
		1136
		1137	our $SLOW_MERGES;#d#
		1138	sub _can_merge {
		1139	my ($ob1, $ob2) = @_;
		1140
		1141	++$SLOW_MERGES;#d#
		1142
		1143	# we do the slow way here
		1144	return _object_equal $ob1, $ob2
		1145	}
787		1146
788	sub reattach {	1147	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	1148	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	1149	my ($obj) = @_;
		1150
		1151	# no longer needed after getting rid of delete_package?
		1152	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		1153
792	my $registry = $obj->registry;	1154	my $registry = $obj->registry;
793		1155
794	@$registry = ();	1156	@$registry = ();
795		1157
…		…
800	for (@$attach) {	1162	for (@$attach) {
801	my ($klass, @attach) = @$_;	1163	my ($klass, @attach) = @$_;
802	_attach $registry, $klass, @attach;	1164	_attach $registry, $klass, @attach;
803	}	1165	}
804	} else {	1166	} else {
805	warn "object uses attachment '$name' that is not available, postponing.\n";	1167	info "object uses attachment '$name' that is not available, postponing.\n";
806	}	1168	}
807	}	1169	}
808	}	1170	}
809		1171
810	cf::attachable->attach (	1172	cf::attachable->attach (
811	prio => -1000000,	1173	prio => -1000000,
812	on_instantiate => sub {	1174	on_instantiate => sub {
813	my ($obj, $data) = @_;	1175	my ($obj, $data) = @_;
814		1176
815	$data = from_json $data;	1177	$data = decode_json $data;
816		1178
817	for (@$data) {	1179	for (@$data) {
818	my ($name, $args) = @$_;	1180	my ($name, $args) = @$_;
819		1181
820	$obj->attach ($name, %{$args || {} });	1182	$obj->attach ($name, %{$args || {} });
…		…
836	sub object_freezer_save {	1198	sub object_freezer_save {
837	my ($filename, $rdata, $objs) = @_;	1199	my ($filename, $rdata, $objs) = @_;
838		1200
839	sync_job {	1201	sync_job {
840	if (length $$rdata) {	1202	if (length $$rdata) {
		1203	utf8::decode (my $decname = $filename);
841	warn sprintf "saving %s (%d,%d)\n",	1204	trace sprintf "saving %s (%d,%d)\n",
842	$filename, length $$rdata, scalar @$objs;	1205	$decname, length $$rdata, scalar @$objs
		1206	if $VERBOSE_IO;
843		1207
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1208	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	1209	aio_chmod $fh, SAVE_MODE;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1210	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1211	if ($cf::USE_FSYNC) {
		1212	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
847	aio_fsync $fh;	1213	aio_fsync $fh;
		1214	}
848	close $fh;	1215	aio_close $fh;
849		1216
850	if (@$objs) {	1217	if (@$objs) {
851	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1218	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1219	aio_chmod $fh, SAVE_MODE;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	1220	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	1221	aio_write $fh, 0, (length $data), $data, 0;
		1222	if ($cf::USE_FSYNC) {
		1223	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
855	aio_fsync $fh;	1224	aio_fsync $fh;
		1225	}
856	close $fh;	1226	aio_close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	1227	aio_rename "$filename.pst~", "$filename.pst";
858	}	1228	}
859	} else {	1229	} else {
860	aio_unlink "$filename.pst";	1230	aio_unlink "$filename.pst";
861	}	1231	}
862		1232
863	aio_rename "$filename~", $filename;	1233	aio_rename "$filename~", $filename;
		1234
		1235	$filename =~ s%/[^/]+$%%;
		1236	aio_pathsync $filename if $cf::USE_FSYNC;
864	} else {	1237	} else {
865	warn "FATAL: $filename~: $!\n";	1238	error "unable to save objects: $filename~: $!\n";
866	}	1239	}
867	} else {	1240	} else {
868	aio_unlink $filename;	1241	aio_unlink $filename;
869	aio_unlink "$filename.pst";	1242	aio_unlink "$filename.pst";
870	}	1243	}
871	}	1244	};
872	}	1245	}
873		1246
874	sub object_freezer_as_string {	1247	sub object_freezer_as_string {
875	my ($rdata, $objs) = @_;	1248	my ($rdata, $objs) = @_;
876		1249
…		…
888	or return;	1261	or return;
889		1262
890	unless (aio_stat "$filename.pst") {	1263	unless (aio_stat "$filename.pst") {
891	(aio_load "$filename.pst", $av) >= 0	1264	(aio_load "$filename.pst", $av) >= 0
892	or return;	1265	or return;
		1266
893	$av = eval { (Storable::thaw $av)->{objs} };	1267	my $st = eval { Coro::Storable::thaw $av };
		1268	$av = $st->{objs};
894	}	1269	}
895		1270
		1271	utf8::decode (my $decname = $filename);
896	warn sprintf "loading %s (%d)\n",	1272	trace sprintf "loading %s (%d,%d)\n",
897	$filename, length $data, scalar @{$av || []};#d#	1273	$decname, length $data, scalar @{$av || []}
		1274	if $VERBOSE_IO;
		1275
898	return ($data, $av);	1276	($data, $av)
899	}	1277	}
		1278
		1279	=head2 COMMAND CALLBACKS
		1280
		1281	=over 4
		1282
		1283	=cut
900		1284
901	#############################################################################	1285	#############################################################################
902	# command handling &c	1286	# command handling &c
903		1287
904	=item cf::register_command $name => \&callback($ob,$args);	1288	=item cf::register_command $name => \&callback($ob,$args);
…		…
917	push @{ $COMMAND{$name} }, [$caller, $cb];	1301	push @{ $COMMAND{$name} }, [$caller, $cb];
918	}	1302	}
919		1303
920	=item cf::register_extcmd $name => \&callback($pl,$packet);	1304	=item cf::register_extcmd $name => \&callback($pl,$packet);
921		1305
922	Register a callbackf ro execution when the client sends an extcmd packet.	1306	Register a callback for execution when the client sends an (synchronous)
		1307	extcmd packet. Ext commands will be processed in the order they are
		1308	received by the server, like other user commands. The first argument is
		1309	the logged-in player. Ext commands can only be processed after a player
		1310	has logged in successfully.
923		1311
924	If the callback returns something, it is sent back as if reply was being	1312	If the callback returns something, it is sent back as if reply was being
925	called.	1313	called.
926		1314
		1315	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1316
		1317	Register a callback for execution when the client sends an (asynchronous)
		1318	exticmd packet. Exti commands are processed by the server as soon as they
		1319	are received, i.e. out of order w.r.t. other commands. The first argument
		1320	is a client socket. Exti commands can be received anytime, even before
		1321	log-in.
		1322
		1323	If the callback returns something, it is sent back as if reply was being
		1324	called.
		1325
927	=cut	1326	=cut
928		1327
929	sub register_extcmd {	1328	sub register_extcmd {
930	my ($name, $cb) = @_;	1329	my ($name, $cb) = @_;
931		1330
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	1331	$EXTCMD{$name} = $cb;
936	}	1332	}
		1333
		1334	sub register_exticmd {
		1335	my ($name, $cb) = @_;
		1336
		1337	$EXTICMD{$name} = $cb;
		1338	}
		1339
		1340	use File::Glob ();
937		1341
938	cf::player->attach (	1342	cf::player->attach (
939	on_command => sub {	1343	on_unknown_command => sub {
940	my ($pl, $name, $params) = @_;	1344	my ($pl, $name, $params) = @_;
941		1345
942	my $cb = $COMMAND{$name}	1346	my $cb = $COMMAND{$name}
943	or return;	1347	or return;
944		1348
…		…
949	cf::override;	1353	cf::override;
950	},	1354	},
951	on_extcmd => sub {	1355	on_extcmd => sub {
952	my ($pl, $buf) = @_;	1356	my ($pl, $buf) = @_;
953		1357
954	my $msg = eval { from_json $buf };	1358	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
955		1359
956	if (ref $msg) {	1360	if (ref $msg) {
		1361	my ($type, $reply, @payload) =
		1362	"ARRAY" eq ref $msg
		1363	? @$msg
		1364	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1365
		1366	my @reply;
		1367
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1368	if (my $cb = $EXTCMD{$type}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	1369	@reply = $cb->($pl, @payload);
959	$pl->ext_reply ($msg->{msgid}, %reply);
960	}
961	}	1370	}
		1371
		1372	$pl->ext_reply ($reply, @reply)
		1373	if $reply;
		1374
962	} else {	1375	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1376	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
964	}	1377	}
965		1378
966	cf::override;	1379	cf::override;
967	},	1380	},
968	);	1381	);
969		1382
970	sub register {	1383	# "readahead" all extensions
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	1384	sub cache_extensions {
977	my ($path) = @_;	1385	my $grp = IO::AIO::aio_group;
978		1386
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1387	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
980	my $base = $1;	1388	for (grep /\.ext$/, @{$_[0]}) {
981	my $pkg = $1;	1389	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
982	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";
984
985	warn "loading '$path' into '$pkg'\n";
986
987	open my $fh, "<:utf8", $path
988	or die "$path: $!";
989
990	my $source =
991	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })
994	. "\n};\n1";
995
996	eval $source
997	or die $@ ? "$path: $@\n"
998	: "extension disabled.\n";
999
1000	push @exts, $pkg;
1001	$ext_pkg{$base} = $pkg;
1002
1003	# no strict 'refs';
1004	# @{"$pkg\::ISA"} = ext::;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }
1019
1020	# remove commands
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}	1390	}
1029	}	1391	};
1030		1392
1031	# remove extcmds	1393	$grp
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}	1394	}
1045		1395
1046	sub load_extensions {	1396	sub load_extensions {
		1397	info "loading extensions...";
		1398
		1399	cf::sync_job {
		1400	my %todo;
		1401
1047	for my $ext (<$LIBDIR/*.ext>) {	1402	for my $path (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;	1403	next unless -r $path;
1049	eval {	1404
1050	load_extension $ext;	1405	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1406	my $base = $1;
		1407	my $pkg = $1;
		1408	$pkg =~ s/[^[:word:]]/_/g;
		1409	$pkg = "ext::$pkg";
		1410
		1411	open my $fh, "<:utf8", $path
		1412	or die "$path: $!";
		1413
		1414	my $source = do { local $/; <$fh> };
		1415
		1416	my %ext = (
		1417	path => $path,
		1418	base => $base,
		1419	pkg => $pkg,
		1420	);
		1421
		1422	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1423	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1424
		1425	$ext{source} =
		1426	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1427	. "#line 1 \"$path\"\n{\n"
		1428	. $source
		1429	. "\n};\n1";
		1430
		1431	$todo{$base} = \%ext;
		1432	}
		1433
		1434	my $pass = 0;
		1435	my %done;
		1436	while (%todo) {
		1437	my $progress;
		1438
		1439	++$pass;
		1440
		1441	ext:
		1442	while (my ($k, $v) = each %todo) {
		1443	for (split /,\s*/, $v->{meta}{depends}) {
		1444	next ext
		1445	unless exists $done{$_};
		1446	}
		1447
		1448	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1449
		1450	my $active = eval $v->{source};
		1451
		1452	if (length $@) {
		1453	error "$v->{path}: $@\n";
		1454
		1455	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1456	if exists $v->{meta}{mandatory};
		1457
		1458	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1459	delete $todo{$k};
		1460	} else {
		1461	$done{$k} = delete $todo{$k};
		1462	push @EXTS, $v->{pkg};
		1463	$progress = 1;
		1464
		1465	info "$v->{base}: extension inactive.\n"
		1466	unless $active;
		1467	}
1051	1	1468	}
1052	} or warn "$ext not loaded: $@";	1469
		1470	unless ($progress) {
		1471	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1472
		1473	while (my ($k, $v) = each %todo) {
		1474	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1475	if exists $v->{meta}{mandatory};
		1476	}
		1477	}
		1478	}
1053	}	1479	};
1054	}	1480	}
1055		1481
1056	#############################################################################	1482	#############################################################################
1057	# load/save/clean perl data associated with a map
1058		1483
1059	*cf::mapsupport::on_clean = sub {	1484	=back
		1485
		1486	=head2 CORE EXTENSIONS
		1487
		1488	Functions and methods that extend core deliantra objects.
		1489
		1490	=cut
		1491
		1492	package cf::player;
		1493
		1494	use Coro::AIO;
		1495
		1496	=head3 cf::player
		1497
		1498	=over 4
		1499
		1500	=item cf::player::num_playing
		1501
		1502	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1503
		1504	=cut
		1505
		1506	sub num_playing {
		1507	scalar grep
		1508	$_->ob->map
		1509	&& !$_->hidden
		1510	&& !$_->ob->flag (cf::FLAG_WIZ),
		1511	cf::player::list
		1512	}
		1513
		1514	=item cf::player::find $login
		1515
		1516	Returns the given player object, loading it if necessary (might block).
		1517
		1518	=cut
		1519
		1520	sub playerdir($) {
		1521	"$PLAYERDIR/"
		1522	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1523	}
		1524
		1525	sub path($) {
		1526	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1527
		1528	(playerdir $login) . "/playerdata"
		1529	}
		1530
		1531	sub find_active($) {
		1532	$cf::PLAYER{$_[0]}
		1533	and $cf::PLAYER{$_[0]}->active
		1534	and $cf::PLAYER{$_[0]}
		1535	}
		1536
		1537	sub exists($) {
1060	my ($map) = @_;	1538	my ($login) = @_;
1061		1539
1062	my $path = $map->tmpname;	1540	$cf::PLAYER{$login}
1063	defined $path or return;	1541	or !aio_stat path $login
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}	1542	}
1076		1543
1077	# TODO: compatibility cruft, remove when no longer needed	1544	sub find($) {
		1545	return $cf::PLAYER{$_[0]} || do {
		1546	my $login = $_[0];
		1547
		1548	my $guard = cf::lock_acquire "user_find:$login";
		1549
		1550	$cf::PLAYER{$_[0]} || do {
		1551	# rename old playerfiles to new ones
		1552	#TODO: remove when no longer required
		1553	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1554	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1555	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1556	aio_unlink +(playerdir $login) . "/$login.pl";
		1557
		1558	my $f = new_from_file cf::object::thawer path $login
		1559	or return;
		1560
		1561	my $pl = cf::player::load_pl $f
		1562	or return;
		1563
		1564	local $cf::PLAYER_LOADING{$login} = $pl;
		1565	$f->resolve_delayed_derefs;
		1566	$cf::PLAYER{$login} = $pl
		1567	}
		1568	}
		1569	}
		1570
1078	cf::player->attach (	1571	cf::player->attach (
1079	on_load => sub {	1572	on_load => sub {
1080	my ($pl, $path) = @_;	1573	my ($pl, $path) = @_;
1081		1574
1082	for my $o (all_objects $pl->ob) {	1575	# restore slots saved in save, below
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1576	my $slots = delete $pl->{_slots};
1084	$o->set_ob_key_value ("_perl_data");
1085		1577
1086	%$o = %{ Storable::thaw pack "H*", $value };	1578	$pl->ob->current_weapon ($slots->[0]);
1087	}	1579	$pl->combat_ob ($slots->[1]);
1088	}	1580	$pl->ranged_ob ($slots->[2]);
1089	},	1581	},
1090	);	1582	);
1091		1583
1092	#############################################################################	1584	sub save($) {
		1585	my ($pl) = @_;
1093		1586
1094	=head2 CORE EXTENSIONS	1587	return if $pl->{deny_save};
1095		1588
1096	Functions and methods that extend core crossfire objects.	1589	my $path = path $pl;
		1590	my $guard = cf::lock_acquire "user_save:$path";
1097		1591
1098	=head3 cf::player	1592	return if $pl->{deny_save};
		1593
		1594	aio_mkdir playerdir $pl, 0770;
		1595	$pl->{last_save} = $cf::RUNTIME;
		1596
		1597	cf::get_slot 0.01;
		1598
		1599	# save slots, to be restored later
		1600	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1601
		1602	$pl->save_pl ($path);
		1603	cf::cede_to_tick;
		1604	}
		1605
		1606	sub new($) {
		1607	my ($login) = @_;
		1608
		1609	my $self = create;
		1610
		1611	$self->ob->name ($login);
		1612	$self->{deny_save} = 1;
		1613
		1614	$cf::PLAYER{$login} = $self;
		1615
		1616	$self
		1617	}
		1618
		1619	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1620
		1621	=cut
		1622
		1623	sub send_msg {
		1624	my $ns = shift->ns
		1625	or return;
		1626	$ns->send_msg (@_);
		1627	}
		1628
		1629	=item $pl->quit_character
		1630
		1631	Nukes the player without looking back. If logged in, the connection will
		1632	be destroyed. May block for a long time.
		1633
		1634	=cut
		1635
		1636	sub quit_character {
		1637	my ($pl) = @_;
		1638
		1639	my $name = $pl->ob->name;
		1640
		1641	$pl->{deny_save} = 1;
		1642	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1643
		1644	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1645	$pl->deactivate;
		1646	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1647	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1648	$pl->ns->destroy if $pl->ns;
		1649
		1650	my $path = playerdir $pl;
		1651	my $temp = "$path~$cf::RUNTIME~deleting~";
		1652	aio_rename $path, $temp;
		1653	delete $cf::PLAYER{$pl->ob->name};
		1654	$pl->destroy;
		1655
		1656	my $prefix = qr<^~\Q$name\E/>;
		1657
		1658	# nuke player maps
		1659	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1660
		1661	IO::AIO::aio_rmtree $temp;
		1662	}
		1663
		1664	=item $pl->kick
		1665
		1666	Kicks a player out of the game. This destroys the connection.
		1667
		1668	=cut
		1669
		1670	sub kick {
		1671	my ($pl, $kicker) = @_;
		1672
		1673	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1674	$pl->killer ("kicked");
		1675	$pl->ns->destroy;
		1676	}
		1677
		1678	=item cf::player::list_logins
		1679
		1680	Returns am arrayref of all valid playernames in the system, can take a
		1681	while and may block, so not sync_job-capable, ever.
		1682
		1683	=cut
		1684
		1685	sub list_logins {
		1686	my $dirs = aio_readdir $PLAYERDIR
		1687	or return [];
		1688
		1689	my @logins;
		1690
		1691	for my $login (@$dirs) {
		1692	my $path = path $login;
		1693
		1694	# a .pst is a dead give-away for a valid player
		1695	# if no pst file found, open and chekc for blocked users
		1696	if (aio_stat "$path.pst") {
		1697	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1698	aio_read $fh, 0, 512, my $buf, 0 or next;
		1699	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1700	}
		1701
		1702	utf8::decode $login;
		1703	push @logins, $login;
		1704	}
		1705
		1706	\@logins
		1707	}
		1708
		1709	=item $player->maps
		1710
		1711	=item cf::player::maps $login
		1712
		1713	Returns an arrayref of map paths that are private for this
		1714	player. May block.
		1715
		1716	=cut
		1717
		1718	sub maps($) {
		1719	my ($pl) = @_;
		1720
		1721	$pl = ref $pl ? $pl->ob->name : $pl;
		1722
		1723	my $files = aio_readdir playerdir $pl
		1724	or return;
		1725
		1726	my @paths;
		1727
		1728	for (@$files) {
		1729	utf8::decode $_;
		1730	next if /\.(?:pl|pst)$/;
		1731	next unless /^$PATH_SEP/o;
		1732
		1733	push @paths, cf::map::normalise "~$pl/$_";
		1734	}
		1735
		1736	\@paths
		1737	}
		1738
		1739	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1740
		1741	Expand deliantra pod fragments into protocol xml.
		1742
		1743	=item $player->ext_reply ($msgid, @msg)
		1744
		1745	Sends an ext reply to the player.
		1746
		1747	=cut
		1748
		1749	sub ext_reply($$@) {
		1750	my ($self, $id, @msg) = @_;
		1751
		1752	$self->ns->ext_reply ($id, @msg)
		1753	}
		1754
		1755	=item $player->ext_msg ($type, @msg)
		1756
		1757	Sends an ext event to the client.
		1758
		1759	=cut
		1760
		1761	sub ext_msg($$@) {
		1762	my ($self, $type, @msg) = @_;
		1763
		1764	$self->ns->ext_msg ($type, @msg);
		1765	}
		1766
		1767	=head3 cf::region
1099		1768
1100	=over 4	1769	=over 4
1101		1770
1102	=item cf::player::exists $login
1103
1104	Returns true when the given account exists.
1105
1106	=cut	1771	=cut
1107		1772
1108	sub cf::player::exists($) {	1773	package cf::region;
1109	cf::player::find $_[0]
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1111	}
1112		1774
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)	1775	=item cf::region::find_by_path $path
1114		1776
1115	Sends an ext reply to the player.	1777	Tries to decuce the likely region for a map knowing only its path.
1116		1778
1117	=cut	1779	=cut
1118		1780
1119	sub cf::player::ext_reply($$$%) {	1781	sub find_by_path($) {
1120	my ($self, $id, %msg) = @_;	1782	my ($path) = @_;
1121		1783
1122	$msg{msgid} = $id;	1784	$path =~ s/^~[^\/]*//; # skip ~login
1123		1785
1124	$self->send ("ext " . to_json \%msg);	1786	my ($match, $specificity);
		1787
		1788	for my $region (list) {
		1789	if ($region->{match} && $path =~ $region->{match}) {
		1790	($match, $specificity) = ($region, $region->specificity)
		1791	if $region->specificity > $specificity;
		1792	}
		1793	}
		1794
		1795	$match
1125	}	1796	}
1126		1797
1127	=back	1798	=back
1128
1129		1799
1130	=head3 cf::map	1800	=head3 cf::map
1131		1801
1132	=over 4	1802	=over 4
1133		1803
…		…
1136	package cf::map;	1806	package cf::map;
1137		1807
1138	use Fcntl;	1808	use Fcntl;
1139	use Coro::AIO;	1809	use Coro::AIO;
1140		1810
		1811	use overload
		1812	'""' => \&as_string,
		1813	fallback => 1;
		1814
1141	our $MAX_RESET = 7200;	1815	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1816	our $DEFAULT_RESET = 3000;
1143		1817
1144	sub generate_random_map {	1818	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1819	my ($self, $rmp) = @_;
		1820
		1821	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1146		1822
1147	# mit "rum" bekleckern, nicht	1823	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1824	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1825	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1826	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1827	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1828	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1829	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1830	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1831	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1832	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1833	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1834	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(cf::region::find $rmp->{region})	1835	(cf::region::find $rmp->{region}), $rmp->{custom}
		1836	)
1161	}	1837	}
1162		1838
1163	# and all this just because we cannot iterate over	1839	=item cf::map->register ($regex, $prio)
1164	# all maps in C++...
1165	sub change_all_map_light {
1166	my ($change) = @_;
1167		1840
1168	$_->change_map_light ($change)	1841	Register a handler for the map path matching the given regex at the
1169	for grep $_->outdoor, values %cf::MAP;	1842	givne priority (higher is better, built-in handlers have priority 0, the
1170	}	1843	default).
1171		1844
1172	sub try_load_header($) {	1845	=cut
		1846
		1847	sub register {
		1848	my (undef, $regex, $prio) = @_;
		1849	my $pkg = caller;
		1850
		1851	no strict;
		1852	push @{"$pkg\::ISA"}, __PACKAGE__;
		1853
		1854	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1855	}
		1856
		1857	# also paths starting with '/'
		1858	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1859
		1860	sub thawer_merge {
		1861	my ($self, $merge) = @_;
		1862
		1863	# we have to keep some variables in memory intact
		1864	local $self->{path};
		1865	local $self->{load_path};
		1866
		1867	$self->SUPER::thawer_merge ($merge);
		1868	}
		1869
		1870	sub normalise {
1173	my ($path) = @_;	1871	my ($path, $base) = @_;
		1872
		1873	$path = "$path"; # make sure its a string
		1874
		1875	$path =~ s/\.map$//;
		1876
		1877	# map plan:
		1878	#
		1879	# /! non-realised random map exit (special hack!)
		1880	# {... are special paths that are not being touched
		1881	# ?xxx/... are special absolute paths
		1882	# ?random/... random maps
		1883	# /... normal maps
		1884	# ~user/... per-player map of a specific user
		1885
		1886	$path =~ s/$PATH_SEP/\//go;
		1887
		1888	# treat it as relative path if it starts with
		1889	# something that looks reasonable
		1890	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1891	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1892
		1893	$base =~ s{[^/]+/?$}{};
		1894	$path = "$base/$path";
		1895	}
		1896
		1897	for ($path) {
		1898	redo if s{//}{/};
		1899	redo if s{/\.?/}{/};
		1900	redo if s{/[^/]+/\.\./}{/};
		1901	}
		1902
		1903	$path
		1904	}
		1905
		1906	sub new_from_path {
		1907	my (undef, $path, $base) = @_;
		1908
		1909	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1910
		1911	$path = normalise $path, $base;
		1912
		1913	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1914	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1915	my $self = bless cf::map::new, $pkg;
		1916	$self->{path} = $path; $self->path ($path);
		1917	$self->init; # pass $1 etc.
		1918	return $self;
		1919	}
		1920	}
		1921
		1922	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1923	()
		1924	}
		1925
		1926	sub init {
		1927	my ($self) = @_;
		1928
		1929	$self
		1930	}
		1931
		1932	sub as_string {
		1933	my ($self) = @_;
		1934
		1935	"$self->{path}"
		1936	}
		1937
		1938	# the displayed name, this is a one way mapping
		1939	sub visible_name {
		1940	&as_string
		1941	}
		1942
		1943	# the original (read-only) location
		1944	sub load_path {
		1945	my ($self) = @_;
		1946
		1947	"$MAPDIR/$self->{path}.map"
		1948	}
		1949
		1950	# the temporary/swap location
		1951	sub save_path {
		1952	my ($self) = @_;
		1953
		1954	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1955	"$TMPDIR/$path.map"
		1956	}
		1957
		1958	# the unique path, undef == no special unique path
		1959	sub uniq_path {
		1960	my ($self) = @_;
		1961
		1962	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1963	"$UNIQUEDIR/$path"
		1964	}
		1965
		1966	sub decay_objects {
		1967	my ($self) = @_;
		1968
		1969	return if $self->{deny_reset};
		1970
		1971	$self->do_decay_objects;
		1972	}
		1973
		1974	sub unlink_save {
		1975	my ($self) = @_;
		1976
		1977	utf8::encode (my $save = $self->save_path);
		1978	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1979	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1980	}
		1981
		1982	sub load_header_from($) {
		1983	my ($self, $path) = @_;
1174		1984
1175	utf8::encode $path;	1985	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1986	my $f = new_from_file cf::object::thawer $path
1177	or return;	1987	or return;
1178		1988
1179	my $map = cf::map::new	1989	$self->_load_header ($f)
1180	or return;	1990	or return;
1181		1991
1182	$map->load_header ($path)	1992	local $MAP_LOADING{$self->{path}} = $self;
		1993	$f->resolve_delayed_derefs;
		1994
		1995	$self->{load_path} = $path;
		1996
		1997	1
		1998	}
		1999
		2000	sub load_header_orig {
		2001	my ($self) = @_;
		2002
		2003	$self->load_header_from ($self->load_path)
		2004	}
		2005
		2006	sub load_header_temp {
		2007	my ($self) = @_;
		2008
		2009	$self->load_header_from ($self->save_path)
		2010	}
		2011
		2012	sub prepare_temp {
		2013	my ($self) = @_;
		2014
		2015	$self->last_access ((delete $self->{last_access})
		2016	|| $cf::RUNTIME); #d#
		2017	# safety
		2018	$self->{instantiate_time} = $cf::RUNTIME
		2019	if $self->{instantiate_time} > $cf::RUNTIME;
		2020	}
		2021
		2022	sub prepare_orig {
		2023	my ($self) = @_;
		2024
		2025	$self->{load_original} = 1;
		2026	$self->{instantiate_time} = $cf::RUNTIME;
		2027	$self->last_access ($cf::RUNTIME);
		2028	$self->instantiate;
		2029	}
		2030
		2031	sub load_header {
		2032	my ($self) = @_;
		2033
		2034	if ($self->load_header_temp) {
		2035	$self->prepare_temp;
		2036	} else {
		2037	$self->load_header_orig
1183	or return;	2038	or return;
		2039	$self->prepare_orig;
		2040	}
1184		2041
1185	$map->{load_path} = $path;	2042	$self->{deny_reset} = 1
		2043	if $self->no_reset;
1186		2044
1187	$map	2045	$self->default_region (cf::region::find_by_path $self->{path})
1188	}	2046	unless $self->default_region;
1189		2047
		2048	1
		2049	}
		2050
1190	sub find_map;	2051	sub find;
1191	sub find_map {	2052	sub find {
1192	my ($path, $origin) = @_;	2053	my ($path, $origin) = @_;
1193		2054
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	2055	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		2056
1199	cf::lock_wait "map_find:$key";	2057	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1200
1201	$cf::MAP{$key} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	2058	my $guard2 = cf::lock_acquire "map_find:$path";
1203		2059
1204	# do it the slow way	2060	$cf::MAP{$path} || do {
1205	my $map = try_load_header $path->save_path;	2061	my $map = new_from_path cf::map $path
1206
1207	if ($map) {
1208	# safety
1209	$map->{instantiate_time} = $cf::RUNTIME
1210	if $map->{instantiate_time} > $cf::RUNTIME;
1211	} else {
1212	if (my $rmp = $path->random_map_params) {
1213	$map = generate_random_map $key, $rmp;
1214	} else {
1215	$map = try_load_header $path->load_path;
1216	}
1217
1218	$map or return;	2062	or return;
1219		2063
1220	$map->{load_original} = 1;
1221	$map->{instantiate_time} = $cf::RUNTIME;
1222	$map->instantiate;
1223
1224	# per-player maps become, after loading, normal maps
1225	$map->per_player (0) if $path->{user_rel};
1226	}
1227
1228	$map->path ($key);
1229	$map->{path} = $path;
1230	$map->{last_save} = $cf::RUNTIME;	2064	$map->{last_save} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232		2065
1233	if ($map->should_reset) {	2066	$map->load_header
		2067	or return;
		2068
		2069	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2070	# doing this can freeze the server in a sync job, obviously
		2071	#$cf::WAIT_FOR_TICK->wait;
		2072	undef $guard2;
		2073	undef $guard1;
1234	$map->reset;	2074	$map->reset;
1235	undef $guard;	2075	return find $path;
1236	$map = find_map $path
1237	or return;
1238	}	2076	}
1239		2077
1240	$cf::MAP{$key} = $map	2078	$cf::MAP{$path} = $map
1241	}	2079	}
1242	}	2080	}
		2081
		2082	sub pre_load { }
		2083	#sub post_load { } # XS
1243		2084
1244	sub load {	2085	sub load {
1245	my ($self) = @_;	2086	my ($self) = @_;
1246		2087
		2088	local $self->{deny_reset} = 1; # loading can take a long time
		2089
1247	my $path = $self->{path};	2090	my $path = $self->{path};
		2091
		2092	{
1248	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2093	my $guard = cf::lock_acquire "map_data:$path";
1249		2094
		2095	return unless $self->valid;
1250	return if $self->in_memory != cf::MAP_SWAPPED;	2096	return unless $self->in_memory == cf::MAP_SWAPPED;
1251		2097
1252	$self->in_memory (cf::MAP_LOADING);	2098	$self->in_memory (cf::MAP_LOADING);
1253		2099
1254	$self->alloc;	2100	$self->alloc;
1255	$self->load_objects ($self->{load_path}, 1)	2101
		2102	$self->pre_load;
		2103	cf::cede_to_tick;
		2104
		2105	my $f = new_from_file cf::object::thawer $self->{load_path};
		2106	$f->skip_block;
		2107	$self->_load_objects ($f)
1256	or return;	2108	or return;
1257		2109
1258	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2110	$self->post_load_original
1259	if delete $self->{load_original};	2111	if delete $self->{load_original};
1260		2112
1261	if (my $uniq = $path->uniq_path) {	2113	if (my $uniq = $self->uniq_path) {
1262	utf8::encode $uniq;	2114	utf8::encode $uniq;
1263	if (aio_open $uniq, O_RDONLY, 0) {	2115	unless (aio_stat $uniq) {
		2116	if (my $f = new_from_file cf::object::thawer $uniq) {
1264	$self->clear_unique_items;	2117	$self->clear_unique_items;
1265	$self->load_objects ($uniq, 0);	2118	$self->_load_objects ($f);
		2119	$f->resolve_delayed_derefs;
		2120	}
1266	}	2121	}
1267	}	2122	}
1268		2123
		2124	$f->resolve_delayed_derefs;
		2125
		2126	cf::cede_to_tick;
1269	# now do the right thing for maps	2127	# now do the right thing for maps
1270	$self->link_multipart_objects;	2128	$self->link_multipart_objects;
1271
1272	if ($self->{path}->is_style_map) {
1273	$self->{deny_save} = 1;
1274	$self->{deny_reset} = 1;
1275	} else {
1276	$self->fix_auto_apply;
1277	$self->decay_objects;
1278	$self->update_buttons;
1279	$self->set_darkness_map;
1280	$self->difficulty ($self->estimate_difficulty)	2129	$self->difficulty ($self->estimate_difficulty)
1281	unless $self->difficulty;	2130	unless $self->difficulty;
		2131	cf::cede_to_tick;
		2132
		2133	unless ($self->{deny_activate}) {
		2134	$self->decay_objects;
		2135	$self->fix_auto_apply;
		2136	$self->update_buttons;
		2137	cf::cede_to_tick;
1282	$self->activate;	2138	$self->activate;
1283	}	2139	}
1284		2140
		2141	$self->{last_save} = $cf::RUNTIME;
		2142	$self->last_access ($cf::RUNTIME);
		2143
1285	$self->in_memory (cf::MAP_IN_MEMORY);	2144	$self->in_memory (cf::MAP_ACTIVE);
1286	}	2145	}
1287		2146
1288	sub load_map_sync {	2147	$self->post_load;
		2148	}
		2149
		2150	# customize the map for a given player, i.e.
		2151	# return the _real_ map. used by e.g. per-player
		2152	# maps to change the path to ~playername/mappath
		2153	sub customise_for {
		2154	my ($self, $ob) = @_;
		2155
		2156	return find "~" . $ob->name . "/" . $self->{path}
		2157	if $self->per_player;
		2158
		2159	# return find "?party/" . $ob->name . "/" . $self->{path}
		2160	# if $self->per_party;
		2161
		2162	$self
		2163	}
		2164
		2165	# find and load all maps in the 3x3 area around a map
		2166	sub load_neighbours {
		2167	my ($map) = @_;
		2168
		2169	my @neigh; # diagonal neighbours
		2170
		2171	for (0 .. 3) {
		2172	my $neigh = $map->tile_path ($_)
		2173	or next;
		2174	$neigh = find $neigh, $map
		2175	or next;
		2176	$neigh->load;
		2177
		2178	# now find the diagonal neighbours
		2179	push @neigh,
		2180	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2181	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2182	}
		2183
		2184	for (grep defined $_->[0], @neigh) {
		2185	my ($path, $origin) = @$_;
		2186	my $neigh = find $path, $origin
		2187	or next;
		2188	$neigh->load;
		2189	}
		2190	}
		2191
		2192	sub find_sync {
1289	my ($path, $origin) = @_;	2193	my ($path, $origin) = @_;
1290		2194
1291	#warn "load_map_sync<$path, $origin>\n";#d#	2195	cf::sync_job { find $path, $origin }
		2196	}
1292		2197
		2198	sub do_load_sync {
		2199	my ($map) = @_;
		2200
		2201	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2202	if $Coro::current == $Coro::main;
		2203
		2204	cf::sync_job { $map->load };
		2205	}
		2206
		2207	our %MAP_PREFETCH;
		2208	our $MAP_PREFETCHER = undef;
		2209
		2210	sub find_async {
		2211	my ($path, $origin, $load) = @_;
		2212
		2213	$path = normalise $path, $origin && $origin->{path};
		2214
		2215	if (my $map = $cf::MAP{$path}) {
		2216	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2217	}
		2218
		2219	$MAP_PREFETCH{$path} |= $load;
		2220
		2221	$MAP_PREFETCHER ||= cf::async {
		2222	$Coro::current->{desc} = "map prefetcher";
		2223
		2224	while (%MAP_PREFETCH) {
		2225	while (my ($k, $v) = each %MAP_PREFETCH) {
		2226	if (my $map = find $k) {
		2227	$map->load if $v;
		2228	}
		2229
		2230	delete $MAP_PREFETCH{$k};
		2231	}
		2232	}
		2233	undef $MAP_PREFETCHER;
		2234	};
		2235	$MAP_PREFETCHER->prio (6);
		2236
		2237	()
		2238	}
		2239
		2240	# common code, used by both ->save and ->swapout
		2241	sub _save {
		2242	my ($self) = @_;
		2243
		2244	$self->{last_save} = $cf::RUNTIME;
		2245
		2246	return unless $self->dirty;
		2247
		2248	my $save = $self->save_path; utf8::encode $save;
		2249	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2250
		2251	$self->{load_path} = $save;
		2252
		2253	return if $self->{deny_save};
		2254
		2255	local $self->{last_access} = $self->last_access;#d#
		2256
1293	cf::sync_job {	2257	cf::async {
1294	my $map = cf::map::find_map $path, $origin	2258	$Coro::current->{desc} = "map player save";
1295	or return;	2259	$_->contr->save for $self->players;
1296	$map->load;	2260	};
1297	$map	2261
		2262	cf::get_slot 0.02;
		2263
		2264	if ($uniq) {
		2265	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2266	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2267	} else {
		2268	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1298	}	2269	}
1299	}	2270	}
1300		2271
1301	sub save {	2272	sub save {
1302	my ($self) = @_;	2273	my ($self) = @_;
1303		2274
1304	$self->{last_save} = $cf::RUNTIME;	2275	my $lock = cf::lock_acquire "map_data:$self->{path}";
1305		2276
1306	return unless $self->dirty;	2277	$self->_save;
1307
1308	my $save = $self->{path}->save_path; utf8::encode $save;
1309	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1310
1311	$self->{load_path} = $save;
1312
1313	return if $self->{deny_save};
1314
1315	if ($uniq) {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1317	$self->save_objects ($uniq, cf::IO_UNIQUES);
1318	} else {
1319	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1320	}
1321	}	2278	}
1322		2279
1323	sub swap_out {	2280	sub swap_out {
1324	my ($self) = @_;	2281	my ($self) = @_;
1325		2282
1326	# save first because save cedes	2283	my $lock = cf::lock_acquire "map_data:$self->{path}";
1327	$self->save;
1328		2284
		2285	return if $self->in_memory != cf::MAP_ACTIVE;
		2286	return if $self->{deny_save};
1329	return if $self->players;	2287	return if $self->players;
1330	return if $self->in_memory != cf::MAP_IN_MEMORY;
1331	return if $self->{deny_save};
1332		2288
		2289	# first deactivate the map and "unlink" it from the core
		2290	$self->deactivate;
		2291	$_->clear_links_to ($self) for values %cf::MAP;
		2292	$self->in_memory (cf::MAP_SWAPPED);
		2293
		2294	# then atomically save
		2295	$self->_save;
		2296
		2297	# then free the map
1333	$self->clear;	2298	$self->clear;
1334	$self->in_memory (cf::MAP_SWAPPED);
1335	}	2299	}
1336		2300
1337	sub reset_at {	2301	sub reset_at {
1338	my ($self) = @_;	2302	my ($self) = @_;
1339		2303
1340	# TODO: safety, remove and allow resettable per-player maps	2304	# TODO: safety, remove and allow resettable per-player maps
1341	return 1e99 if $self->{path}{user_rel};
1342	return 1e99 if $self->{deny_reset};	2305	return 1e99 if $self->{deny_reset};
1343		2306
1344	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2307	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1345	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2308	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1346		2309
…		…
1351	my ($self) = @_;	2314	my ($self) = @_;
1352		2315
1353	$self->reset_at <= $cf::RUNTIME	2316	$self->reset_at <= $cf::RUNTIME
1354	}	2317	}
1355		2318
1356	sub unlink_save {
1357	my ($self) = @_;
1358
1359	utf8::encode (my $save = $self->{path}->save_path);
1360	aioreq_pri 3; IO::AIO::aio_unlink $save;
1361	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1362	}
1363
1364	sub rename {
1365	my ($self, $new_path) = @_;
1366
1367	$self->unlink_save;
1368
1369	delete $cf::MAP{$self->path};
1370	$self->{path} = new cf::path $new_path;
1371	$self->path ($self->{path}->as_string);
1372	$cf::MAP{$self->path} = $self;
1373
1374	$self->save;
1375	}
1376
1377	sub reset {	2319	sub reset {
1378	my ($self) = @_;	2320	my ($self) = @_;
1379		2321
		2322	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2323
1380	return if $self->players;	2324	return if $self->players;
1381	return if $self->{path}{user_rel};#d#
1382		2325
1383	warn "resetting map ", $self->path;#d#	2326	cf::trace "resetting map ", $self->path, "\n";
		2327
		2328	$self->in_memory (cf::MAP_SWAPPED);
		2329
		2330	# need to save uniques path
		2331	unless ($self->{deny_save}) {
		2332	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2333
		2334	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2335	if $uniq;
		2336	}
1384		2337
1385	delete $cf::MAP{$self->path};	2338	delete $cf::MAP{$self->path};
1386		2339
		2340	$self->deactivate;
1387	$_->clear_links_to ($self) for values %cf::MAP;	2341	$_->clear_links_to ($self) for values %cf::MAP;
		2342	$self->clear;
1388		2343
1389	$self->unlink_save;	2344	$self->unlink_save;
1390	$self->destroy;	2345	$self->destroy;
1391	}	2346	}
1392		2347
1393	my $nuke_counter = "aaaa";	2348	my $nuke_counter = "aaaa";
1394		2349
1395	sub nuke {	2350	sub nuke {
1396	my ($self) = @_;	2351	my ($self) = @_;
1397		2352
		2353	{
		2354	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2355
		2356	delete $cf::MAP{$self->path};
		2357
		2358	$self->unlink_save;
		2359
		2360	bless $self, "cf::map::wrap";
		2361	delete $self->{deny_reset};
1398	$self->{deny_save} = 1;	2362	$self->{deny_save} = 1;
1399	$self->reset_timeout (1);	2363	$self->reset_timeout (1);
1400	$self->rename ("{nuke}/" . ($nuke_counter++));	2364	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2365
		2366	$cf::MAP{$self->path} = $self;
		2367	}
		2368
1401	$self->reset; # polite request, might not happen	2369	$self->reset; # polite request, might not happen
1402	}	2370	}
1403		2371
1404	sub customise_for {	2372	=item $maps = cf::map::tmp_maps
1405	my ($map, $ob) = @_;
1406		2373
1407	if ($map->per_player) {	2374	Returns an arrayref with all map paths of currently instantiated and saved
1408	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2375	maps. May block.
		2376
		2377	=cut
		2378
		2379	sub tmp_maps() {
1409	}	2380	[
1410		2381	map {
1411	$map	2382	utf8::decode $_;
		2383	/\.map$/
		2384	? normalise $_
		2385	: ()
		2386	} @{ aio_readdir $TMPDIR or [] }
		2387	]
1412	}	2388	}
1413		2389
1414	sub emergency_save {	2390	=item $maps = cf::map::random_maps
1415	local $cf::FREEZE = 1;
1416		2391
1417	warn "enter emergency map save\n";	2392	Returns an arrayref with all map paths of currently instantiated and saved
		2393	random maps. May block.
1418		2394
1419	cf::sync_job {	2395	=cut
1420	warn "begin emergency map save\n";	2396
1421	$_->save for values %cf::MAP;	2397	sub random_maps() {
		2398	[
		2399	map {
		2400	utf8::decode $_;
		2401	/\.map$/
		2402	? normalise "?random/$_"
		2403	: ()
		2404	} @{ aio_readdir $RANDOMDIR or [] }
		2405	]
		2406	}
		2407
		2408	=item cf::map::unique_maps
		2409
		2410	Returns an arrayref of paths of all shared maps that have
		2411	instantiated unique items. May block.
		2412
		2413	=cut
		2414
		2415	sub unique_maps() {
		2416	[
		2417	map {
		2418	utf8::decode $_;
		2419	s/\.map$//; # TODO future compatibility hack
		2420	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2421	? ()
		2422	: normalise $_
		2423	} @{ aio_readdir $UNIQUEDIR or [] }
		2424	]
		2425	}
		2426
		2427	=item cf::map::static_maps
		2428
		2429	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2430	file in the shared directory excluding F</styles> and F</editor>). May
		2431	block.
		2432
		2433	=cut
		2434
		2435	sub static_maps() {
		2436	my @dirs = "";
		2437	my @maps;
		2438
		2439	while (@dirs) {
		2440	my $dir = shift @dirs;
		2441
		2442	next if $dir eq "/styles" || $dir eq "/editor";
		2443
		2444	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2445	or return;
		2446
		2447	for (@$files) {
		2448	s/\.map$// or next;
		2449	utf8::decode $_;
		2450	push @maps, "$dir/$_";
		2451	}
		2452
		2453	push @dirs, map "$dir/$_", @$dirs;
1422	};	2454	}
1423		2455
1424	warn "end emergency map save\n";	2456	\@maps
		2457	}
		2458
		2459	=back
		2460
		2461	=head3 cf::object
		2462
		2463	=cut
		2464
		2465	package cf::object;
		2466
		2467	=over 4
		2468
		2469	=item $ob->inv_recursive
		2470
		2471	Returns the inventory of the object I<and> their inventories, recursively,
		2472	but I<not> the object itself.
		2473
		2474	=cut
		2475
		2476	sub inv_recursive_;
		2477	sub inv_recursive_ {
		2478	map { $_, inv_recursive_ $_->inv } @_
		2479	}
		2480
		2481	sub inv_recursive {
		2482	inv_recursive_ inv $_[0]
		2483	}
		2484
		2485	=item $ref = $ob->ref
		2486
		2487	Creates and returns a persistent reference to an object that can be stored as a string.
		2488
		2489	=item $ob = cf::object::deref ($refstring)
		2490
		2491	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2492	even if the object actually exists. May block.
		2493
		2494	=cut
		2495
		2496	sub deref {
		2497	my ($ref) = @_;
		2498
		2499	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2500	my ($uuid, $name) = ($1, $2);
		2501	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2502	or return;
		2503	$pl->ob->uuid eq $uuid
		2504	or return;
		2505
		2506	$pl->ob
		2507	} else {
		2508	warn "$ref: cannot resolve object reference\n";
		2509	undef
		2510	}
1425	}	2511	}
1426		2512
1427	package cf;	2513	package cf;
1428		2514
1429	=back	2515	=back
1430
1431		2516
1432	=head3 cf::object::player	2517	=head3 cf::object::player
1433		2518
1434	=over 4	2519	=over 4
1435		2520
…		…
1438	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2523	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1439	can be C<undef>. Does the right thing when the player is currently in a	2524	can be C<undef>. Does the right thing when the player is currently in a
1440	dialogue with the given NPC character.	2525	dialogue with the given NPC character.
1441		2526
1442	=cut	2527	=cut
		2528
		2529	our $SAY_CHANNEL = {
		2530	id => "say",
		2531	title => "Map",
		2532	reply => "say ",
		2533	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2534	};
		2535
		2536	our $CHAT_CHANNEL = {
		2537	id => "chat",
		2538	title => "Chat",
		2539	reply => "chat ",
		2540	tooltip => "Player chat and shouts, global to the server.",
		2541	};
1443		2542
1444	# rough implementation of a future "reply" method that works	2543	# rough implementation of a future "reply" method that works
1445	# with dialog boxes.	2544	# with dialog boxes.
1446	#TODO: the first argument must go, split into a $npc->reply_to ( method	2545	#TODO: the first argument must go, split into a $npc->reply_to ( method
1447	sub cf::object::player::reply($$$;$) {	2546	sub cf::object::player::reply($$$;$) {
…		…
1449		2548
1450	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2549	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1451		2550
1452	if ($self->{record_replies}) {	2551	if ($self->{record_replies}) {
1453	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2552	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2553
1454	} else {	2554	} else {
		2555	my $pl = $self->contr;
		2556
		2557	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2558	my $dialog = $pl->{npc_dialog};
		2559	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2560
		2561	} else {
1455	$msg = $npc->name . " says: $msg" if $npc;	2562	$msg = $npc->name . " says: $msg" if $npc;
1456	$self->message ($msg, $flags);	2563	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2564	}
1457	}	2565	}
		2566	}
		2567
		2568	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2569
		2570	=cut
		2571
		2572	sub cf::object::send_msg {
		2573	my $pl = shift->contr
		2574	or return;
		2575	$pl->send_msg (@_);
1458	}	2576	}
1459		2577
1460	=item $player_object->may ("access")	2578	=item $player_object->may ("access")
1461		2579
1462	Returns wether the given player is authorized to access resource "access"	2580	Returns wether the given player is authorized to access resource "access"
…		…
1475		2593
1476	=item $player_object->enter_link	2594	=item $player_object->enter_link
1477		2595
1478	Freezes the player and moves him/her to a special map (C<{link}>).	2596	Freezes the player and moves him/her to a special map (C<{link}>).
1479		2597
1480	The player should be reaosnably safe there for short amounts of time. You	2598	The player should be reasonably safe there for short amounts of time (e.g.
1481	I<MUST> call C<leave_link> as soon as possible, though.	2599	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2600	though, as the player cannot control the character while it is on the link
		2601	map.
		2602
		2603	Will never block.
1482		2604
1483	=item $player_object->leave_link ($map, $x, $y)	2605	=item $player_object->leave_link ($map, $x, $y)
1484		2606
1485	Moves the player out of the specila link map onto the given map. If the	2607	Moves the player out of the special C<{link}> map onto the specified
1486	map is not valid (or omitted), the player will be moved back to the	2608	map. If the map is not valid (or omitted), the player will be moved back
1487	location he/she was before the call to C<enter_link>, or, if that fails,	2609	to the location he/she was before the call to C<enter_link>, or, if that
1488	to the emergency map position.	2610	fails, to the emergency map position.
1489		2611
1490	Might block.	2612	Might block.
1491		2613
1492	=cut	2614	=cut
		2615
		2616	sub link_map {
		2617	unless ($LINK_MAP) {
		2618	$LINK_MAP = cf::map::find "{link}"
		2619	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2620	$LINK_MAP->load;
		2621	}
		2622
		2623	$LINK_MAP
		2624	}
1493		2625
1494	sub cf::object::player::enter_link {	2626	sub cf::object::player::enter_link {
1495	my ($self) = @_;	2627	my ($self) = @_;
1496		2628
1497	$self->deactivate_recursive;	2629	$self->deactivate_recursive;
1498		2630
1499	return if $self->map == $LINK_MAP;	2631	++$self->{_link_recursion};
		2632
		2633	return if UNIVERSAL::isa $self->map, "ext::map_link";
1500		2634
1501	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2635	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1502	if $self->map;	2636	if $self->map && $self->map->{path} ne "{link}";
1503		2637
1504	$self->enter_map ($LINK_MAP, 20, 20);	2638	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1505	}	2639	}
1506		2640
1507	sub cf::object::player::leave_link {	2641	sub cf::object::player::leave_link {
1508	my ($self, $map, $x, $y) = @_;	2642	my ($self, $map, $x, $y) = @_;
		2643
		2644	return unless $self->contr->active;
1509		2645
1510	my $link_pos = delete $self->{_link_pos};	2646	my $link_pos = delete $self->{_link_pos};
1511		2647
1512	unless ($map) {	2648	unless ($map) {
1513	# restore original map position	2649	# restore original map position
1514	($map, $x, $y) = @{ $link_pos || [] };	2650	($map, $x, $y) = @{ $link_pos || [] };
1515	$map = cf::map::find_map $map;	2651	$map = cf::map::find $map;
1516		2652
1517	unless ($map) {	2653	unless ($map) {
1518	($map, $x, $y) = @$EMERGENCY_POSITION;	2654	($map, $x, $y) = @$EMERGENCY_POSITION;
1519	$map = cf::map::find_map $map	2655	$map = cf::map::find $map
1520	or die "FATAL: cannot load emergency map\n";	2656	or die "FATAL: cannot load emergency map\n";
1521	}	2657	}
1522	}	2658	}
1523		2659
1524	($x, $y) = (-1, -1)	2660	($x, $y) = (-1, -1)
1525	unless (defined $x) && (defined $y);	2661	unless (defined $x) && (defined $y);
1526		2662
1527	# use -1 or undef as default coordinates, not 0, 0	2663	# use -1 or undef as default coordinates, not 0, 0
1528	($x, $y) = ($map->enter_x, $map->enter_y)	2664	($x, $y) = ($map->enter_x, $map->enter_y)
1529	if $x <=0 && $y <= 0;	2665	if $x <= 0 && $y <= 0;
1530		2666
1531	$map->load;	2667	$map->load;
		2668	$map->load_neighbours;
1532		2669
		2670	return unless $self->contr->active;
		2671
		2672	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2673	if ($self->enter_map ($map, $x, $y)) {
		2674	# entering was successful
		2675	delete $self->{_link_recursion};
		2676	# only activate afterwards, to support waiting in hooks
1533	$self->activate_recursive;	2677	$self->activate_recursive;
1534	$self->enter_map ($map, $x, $y);
1535	}
1536
1537	cf::player->attach (
1538	on_logout => sub {
1539	my ($pl) = @_;
1540
1541	# abort map switching before logout
1542	if ($pl->ob->{_link_pos}) {
1543	cf::sync_job {
1544	$pl->ob->leave_link
1545	};
1546	}
1547	},	2678	}
1548	on_login => sub {
1549	my ($pl) = @_;
1550		2679
1551	# try to abort aborted map switching on player login :)	2680	}
1552	# should happen only on crashes
1553	if ($pl->ob->{_link_pos}) {
1554	$pl->ob->enter_link;
1555	cf::async {
1556	# we need this sleep as the login has a concurrent enter_exit running
1557	# and this sleep increases chances of the player not ending up in scorn
1558	Coro::Timer::sleep 1;
1559	$pl->ob->leave_link;
1560	};
1561	}
1562	},
1563	);
1564		2681
1565	=item $player_object->goto_map ($path, $x, $y)	2682	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1566		2683
1567	=cut	2684	Moves the player to the given map-path and coordinates by first freezing
		2685	her, loading and preparing them map, calling the provided $check callback
		2686	that has to return the map if sucecssful, and then unfreezes the player on
		2687	the new (success) or old (failed) map position. In either case, $done will
		2688	be called at the end of this process.
1568		2689
		2690	Note that $check will be called with a potentially non-loaded map, so if
		2691	it needs a loaded map it has to call C<< ->load >>.
		2692
		2693	=cut
		2694
		2695	our $GOTOGEN;
		2696
1569	sub cf::object::player::goto_map {	2697	sub cf::object::player::goto {
1570	my ($self, $path, $x, $y) = @_;	2698	my ($self, $path, $x, $y, $check, $done) = @_;
		2699
		2700	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2701	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2702	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2703	($path, $x, $y) = @$EMERGENCY_POSITION;
		2704	}
		2705
		2706	# do generation counting so two concurrent goto's will be executed in-order
		2707	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1571		2708
1572	$self->enter_link;	2709	$self->enter_link;
1573		2710
1574	(cf::async {	2711	(async {
1575	$path = new cf::path $path;	2712	$Coro::current->{desc} = "player::goto $path $x $y";
1576		2713
1577	my $map = cf::map::find_map $path->as_string;	2714	# *tag paths override both path and x|y
		2715	if ($path =~ /^\*(.*)$/) {
		2716	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2717	my $ob = $obs[rand @obs];
		2718
		2719	# see if we actually can go there
		2720	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2721	$ob = $obs[rand @obs];
		2722	} else {
		2723	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2724	}
		2725	# else put us there anyways for now #d#
		2726
		2727	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2728	} else {
		2729	($path, $x, $y) = (undef, undef, undef);
		2730	}
		2731	}
		2732
		2733	my $map = eval {
		2734	my $map = defined $path ? cf::map::find $path : undef;
		2735
		2736	if ($map) {
1578	$map = $map->customise_for ($self) if $map;	2737	$map = $map->customise_for ($self);
1579		2738	$map = $check->($map, $x, $y, $self) if $check && $map;
1580	# warn "entering ", $map->path, " at ($x, $y)\n"	2739	} else {
1581	# if $map;
1582
1583	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2740	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2741	}
1584		2742
		2743	$map
		2744	};
		2745
		2746	if ($@) {
		2747	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2748	LOG llevError | logBacktrace, Carp::longmess $@;
		2749	}
		2750
		2751	if ($gen == $self->{_goto_generation}) {
		2752	delete $self->{_goto_generation};
1585	$self->leave_link ($map, $x, $y);	2753	$self->leave_link ($map, $x, $y);
		2754	}
		2755
		2756	$done->($self) if $done;
1586	})->prio (1);	2757	})->prio (1);
1587	}	2758	}
1588		2759
1589	=item $player_object->enter_exit ($exit_object)	2760	=item $player_object->enter_exit ($exit_object)
1590		2761
…		…
1592		2763
1593	sub parse_random_map_params {	2764	sub parse_random_map_params {
1594	my ($spec) = @_;	2765	my ($spec) = @_;
1595		2766
1596	my $rmp = { # defaults	2767	my $rmp = { # defaults
1597	xsize => 10,	2768	xsize => (cf::rndm 15, 40),
1598	ysize => 10,	2769	ysize => (cf::rndm 15, 40),
		2770	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2771	#layout => string,
1599	};	2772	};
1600		2773
1601	for (split /\n/, $spec) {	2774	for (split /\n/, $spec) {
1602	my ($k, $v) = split /\s+/, $_, 2;	2775	my ($k, $v) = split /\s+/, $_, 2;
1603		2776
…		…
1615	# that depends on the exit object	2788	# that depends on the exit object
1616		2789
1617	my $rmp = parse_random_map_params $exit->msg;	2790	my $rmp = parse_random_map_params $exit->msg;
1618		2791
1619	if ($exit->map) {	2792	if ($exit->map) {
1620	$rmp->{region} = $exit->map->region_name;	2793	$rmp->{region} = $exit->region->name;
1621	$rmp->{origin_map} = $exit->map->path;	2794	$rmp->{origin_map} = $exit->map->path;
1622	$rmp->{origin_x} = $exit->x;	2795	$rmp->{origin_x} = $exit->x;
1623	$rmp->{origin_y} = $exit->y;	2796	$rmp->{origin_y} = $exit->y;
		2797
		2798	$exit->map->touch;
1624	}	2799	}
1625		2800
1626	$rmp->{random_seed} ||= $exit->random_seed;	2801	$rmp->{random_seed} ||= $exit->random_seed;
1627		2802
1628	my $data = cf::to_json $rmp;	2803	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1629	my $md5 = Digest::MD5::md5_hex $data;	2804	my $md5 = Digest::MD5::md5_hex $data;
		2805	my $meta = "$RANDOMDIR/$md5.meta";
1630		2806
1631	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2807	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1632	aio_write $fh, 0, (length $data), $data, 0;	2808	aio_write $fh, 0, (length $data), $data, 0;
		2809	undef $fh;
		2810	aio_rename "$meta~", $meta;
1633		2811
		2812	my $slaying = "?random/$md5";
		2813
		2814	if ($exit->valid) {
1634	$exit->slaying ("?random/$md5");	2815	$exit->slaying ("?random/$md5");
1635	$exit->msg (undef);	2816	$exit->msg (undef);
		2817	}
1636	}	2818	}
1637	}	2819	}
1638		2820
1639	sub cf::object::player::enter_exit {	2821	sub cf::object::player::enter_exit {
1640	my ($self, $exit) = @_;	2822	my ($self, $exit) = @_;
1641		2823
1642	return unless $self->type == cf::PLAYER;	2824	return unless $self->type == cf::PLAYER;
1643		2825
1644	$self->enter_link;	2826	$self->enter_link;
1645		2827
1646	(cf::async {	2828	(async {
		2829	$Coro::current->{desc} = "enter_exit";
		2830
1647	unless (eval {	2831	unless (eval {
		2832	$self->deactivate_recursive; # just to be sure
		2833
		2834	# random map handling
		2835	{
		2836	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2837
1648	prepare_random_map $exit	2838	prepare_random_map $exit
1649	if $exit->slaying eq "/!";	2839	if $exit->slaying eq "/!";
		2840	}
1650		2841
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2842	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2843	my $x = $exit->stats->hp;
		2844	my $y = $exit->stats->sp;
1653		2845
		2846	$self->goto ($map, $x, $y);
		2847
		2848	# if exit is damned, update players death & WoR home-position
		2849	$self->contr->savebed ($map, $x, $y)
		2850	if $exit->flag (cf::FLAG_DAMNED);
		2851
1654	1;	2852	1
1655	}) {	2853	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2854	$self->message ("Something went wrong deep within the deliantra server. "
1657	. "I'll try to bring you back to the map you were before. "	2855	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	2856	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2857	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2858
1661	warn "ERROR in enter_exit: $@";	2859	error "ERROR in enter_exit: $@";
1662	$self->leave_link;	2860	$self->leave_link;
1663	}	2861	}
1664	})->prio (1);	2862	})->prio (1);
1665	}	2863	}
1666		2864
…		…
1677		2875
1678	sub cf::client::send_drawinfo {	2876	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2877	my ($self, $text, $flags) = @_;
1680		2878
1681	utf8::encode $text;	2879	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2880	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2881	}
1684		2882
		2883	=item $client->send_big_packet ($pkt)
		2884
		2885	Like C<send_packet>, but tries to compress large packets, and fragments
		2886	them as required.
		2887
		2888	=cut
		2889
		2890	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2891
		2892	sub cf::client::send_big_packet {
		2893	my ($self, $pkt) = @_;
		2894
		2895	# try lzf for large packets
		2896	$pkt = "lzf " . Compress::LZF::compress $pkt
		2897	if 1024 <= length $pkt and $self->{can_lzf};
		2898
		2899	# split very large packets
		2900	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2901	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2902	$pkt = "frag";
		2903	}
		2904
		2905	$self->send_packet ($pkt);
		2906	}
		2907
		2908	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2909
		2910	Send a drawinfo or msg packet to the client, formatting the msg for the
		2911	client if neccessary. C<$type> should be a string identifying the type of
		2912	the message, with C<log> being the default. If C<$color> is negative, suppress
		2913	the message unless the client supports the msg packet.
		2914
		2915	=cut
		2916
		2917	# non-persistent channels (usually the info channel)
		2918	our %CHANNEL = (
		2919	"c/motd" => {
		2920	id => "infobox",
		2921	title => "MOTD",
		2922	reply => undef,
		2923	tooltip => "The message of the day",
		2924	},
		2925	"c/identify" => {
		2926	id => "infobox",
		2927	title => "Identify",
		2928	reply => undef,
		2929	tooltip => "Items recently identified",
		2930	},
		2931	"c/examine" => {
		2932	id => "infobox",
		2933	title => "Examine",
		2934	reply => undef,
		2935	tooltip => "Signs and other items you examined",
		2936	},
		2937	"c/shopinfo" => {
		2938	id => "infobox",
		2939	title => "Shop Info",
		2940	reply => undef,
		2941	tooltip => "What your bargaining skill tells you about the shop",
		2942	},
		2943	"c/book" => {
		2944	id => "infobox",
		2945	title => "Book",
		2946	reply => undef,
		2947	tooltip => "The contents of a note or book",
		2948	},
		2949	"c/lookat" => {
		2950	id => "infobox",
		2951	title => "Look",
		2952	reply => undef,
		2953	tooltip => "What you saw there",
		2954	},
		2955	"c/who" => {
		2956	id => "infobox",
		2957	title => "Players",
		2958	reply => undef,
		2959	tooltip => "Shows players who are currently online",
		2960	},
		2961	"c/body" => {
		2962	id => "infobox",
		2963	title => "Body Parts",
		2964	reply => undef,
		2965	tooltip => "Shows which body parts you posess and are available",
		2966	},
		2967	"c/statistics" => {
		2968	id => "infobox",
		2969	title => "Statistics",
		2970	reply => undef,
		2971	tooltip => "Shows your primary statistics",
		2972	},
		2973	"c/skills" => {
		2974	id => "infobox",
		2975	title => "Skills",
		2976	reply => undef,
		2977	tooltip => "Shows your experience per skill and item power",
		2978	},
		2979	"c/shopitems" => {
		2980	id => "infobox",
		2981	title => "Shop Items",
		2982	reply => undef,
		2983	tooltip => "Shows the items currently for sale in this shop",
		2984	},
		2985	"c/resistances" => {
		2986	id => "infobox",
		2987	title => "Resistances",
		2988	reply => undef,
		2989	tooltip => "Shows your resistances",
		2990	},
		2991	"c/pets" => {
		2992	id => "infobox",
		2993	title => "Pets",
		2994	reply => undef,
		2995	tooltip => "Shows information abotu your pets/a specific pet",
		2996	},
		2997	"c/perceiveself" => {
		2998	id => "infobox",
		2999	title => "Perceive Self",
		3000	reply => undef,
		3001	tooltip => "You gained detailed knowledge about yourself",
		3002	},
		3003	"c/uptime" => {
		3004	id => "infobox",
		3005	title => "Uptime",
		3006	reply => undef,
		3007	tooltip => "How long the server has been running since last restart",
		3008	},
		3009	"c/mapinfo" => {
		3010	id => "infobox",
		3011	title => "Map Info",
		3012	reply => undef,
		3013	tooltip => "Information related to the maps",
		3014	},
		3015	"c/party" => {
		3016	id => "party",
		3017	title => "Party",
		3018	reply => "gsay ",
		3019	tooltip => "Messages and chat related to your party",
		3020	},
		3021	"c/death" => {
		3022	id => "death",
		3023	title => "Death",
		3024	reply => undef,
		3025	tooltip => "Reason for and more info about your most recent death",
		3026	},
		3027	"c/say" => $SAY_CHANNEL,
		3028	"c/chat" => $CHAT_CHANNEL,
		3029	);
		3030
		3031	sub cf::client::send_msg {
		3032	my ($self, $channel, $msg, $color, @extra) = @_;
		3033
		3034	$msg = $self->pl->expand_cfpod ($msg)
		3035	unless $color & cf::NDI_VERBATIM;
		3036
		3037	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3038
		3039	# check predefined channels, for the benefit of C
		3040	if ($CHANNEL{$channel}) {
		3041	$channel = $CHANNEL{$channel};
		3042
		3043	$self->ext_msg (channel_info => $channel);
		3044	$channel = $channel->{id};
		3045
		3046	} elsif (ref $channel) {
		3047	# send meta info to client, if not yet sent
		3048	unless (exists $self->{channel}{$channel->{id}}) {
		3049	$self->{channel}{$channel->{id}} = $channel;
		3050	$self->ext_msg (channel_info => $channel);
		3051	}
		3052
		3053	$channel = $channel->{id};
		3054	}
		3055
		3056	return unless @extra || length $msg;
		3057
		3058	# default colour, mask it out
		3059	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3060	if $color & cf::NDI_DEF;
		3061
		3062	my $pkt = "msg "
		3063	. $self->{json_coder}->encode (
		3064	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3065	);
		3066
		3067	$self->send_big_packet ($pkt);
		3068	}
		3069
		3070	=item $client->ext_msg ($type, @msg)
		3071
		3072	Sends an ext event to the client.
		3073
		3074	=cut
		3075
		3076	sub cf::client::ext_msg($$@) {
		3077	my ($self, $type, @msg) = @_;
		3078
		3079	if ($self->extcmd == 2) {
		3080	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3081	} elsif ($self->extcmd == 1) { # TODO: remove
		3082	push @msg, msgtype => "event_$type";
		3083	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3084	}
		3085	}
		3086
		3087	=item $client->ext_reply ($msgid, @msg)
		3088
		3089	Sends an ext reply to the client.
		3090
		3091	=cut
		3092
		3093	sub cf::client::ext_reply($$@) {
		3094	my ($self, $id, @msg) = @_;
		3095
		3096	if ($self->extcmd == 2) {
		3097	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3098	} elsif ($self->extcmd == 1) {
		3099	#TODO: version 1, remove
		3100	unshift @msg, msgtype => "reply", msgid => $id;
		3101	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3102	}
		3103	}
1685		3104
1686	=item $success = $client->query ($flags, "text", \&cb)	3105	=item $success = $client->query ($flags, "text", \&cb)
1687		3106
1688	Queues a query to the client, calling the given callback with	3107	Queues a query to the client, calling the given callback with
1689	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3108	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1690	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3109	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1691		3110
1692	Queries can fail, so check the return code. Or don't, as queries will become	3111	Queries can fail, so check the return code. Or don't, as queries will
1693	reliable at some point in the future.	3112	become reliable at some point in the future.
1694		3113
1695	=cut	3114	=cut
1696		3115
1697	sub cf::client::query {	3116	sub cf::client::query {
1698	my ($self, $flags, $text, $cb) = @_;	3117	my ($self, $flags, $text, $cb) = @_;
…		…
1706	utf8::encode $text;	3125	utf8::encode $text;
1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3126	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1708		3127
1709	$self->send_packet ($self->{query_queue}[0][0])	3128	$self->send_packet ($self->{query_queue}[0][0])
1710	if @{ $self->{query_queue} } == 1;	3129	if @{ $self->{query_queue} } == 1;
		3130
		3131	1
1711	}	3132	}
1712		3133
1713	cf::client->attach (	3134	cf::client->attach (
		3135	on_connect => sub {
		3136	my ($ns) = @_;
		3137
		3138	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3139	},
1714	on_reply => sub {	3140	on_reply => sub {
1715	my ($ns, $msg) = @_;	3141	my ($ns, $msg) = @_;
1716		3142
1717	# this weird shuffling is so that direct followup queries	3143	# this weird shuffling is so that direct followup queries
1718	# get handled first	3144	# get handled first
1719	my $queue = delete $ns->{query_queue}	3145	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	3146	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		3147
1722	(shift @$queue)->[1]->($msg);	3148	(shift @$queue)->[1]->($msg);
		3149	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		3150
1724	push @{ $ns->{query_queue} }, @$queue;	3151	push @{ $ns->{query_queue} }, @$queue;
1725		3152
1726	if (@{ $ns->{query_queue} } == @$queue) {	3153	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	3154	if (@$queue) {
…		…
1729	} else {	3156	} else {
1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3157	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1731	}	3158	}
1732	}	3159	}
1733	},	3160	},
		3161	on_exticmd => sub {
		3162	my ($ns, $buf) = @_;
		3163
		3164	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3165
		3166	if (ref $msg) {
		3167	my ($type, $reply, @payload) =
		3168	"ARRAY" eq ref $msg
		3169	? @$msg
		3170	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3171
		3172	my @reply;
		3173
		3174	if (my $cb = $EXTICMD{$type}) {
		3175	@reply = $cb->($ns, @payload);
		3176	}
		3177
		3178	$ns->ext_reply ($reply, @reply)
		3179	if $reply;
		3180
		3181	} else {
		3182	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3183	}
		3184
		3185	cf::override;
		3186	},
1734	);	3187	);
1735		3188
1736	=item $client->coro (\&cb)	3189	=item $client->async (\&cb)
1737		3190
1738	Create a new coroutine, running the specified callback. The coroutine will	3191	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	3192	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	3193	or loss of connection).
1741		3194
1742	=cut	3195	=cut
1743		3196
1744	sub cf::client::coro {	3197	sub cf::client::async {
1745	my ($self, $cb) = @_;	3198	my ($self, $cb) = @_;
1746		3199
1747	my $coro = &cf::async ($cb);	3200	my $coro = &Coro::async ($cb);
1748		3201
1749	$coro->on_destroy (sub {	3202	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	3203	delete $self->{_coro}{$coro+0};
1751	});	3204	});
1752		3205
…		…
1754		3207
1755	$coro	3208	$coro
1756	}	3209	}
1757		3210
1758	cf::client->attach (	3211	cf::client->attach (
1759	on_destroy => sub {	3212	on_client_destroy => sub {
1760	my ($ns) = @_;	3213	my ($ns) = @_;
1761		3214
1762	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3215	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1763	},	3216	},
1764	);	3217	);
…		…
1779	our $safe = new Safe "safe";	3232	our $safe = new Safe "safe";
1780	our $safe_hole = new Safe::Hole;	3233	our $safe_hole = new Safe::Hole;
1781		3234
1782	$SIG{FPE} = 'IGNORE';	3235	$SIG{FPE} = 'IGNORE';
1783		3236
1784	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3237	$safe->permit_only (Opcode::opset qw(
		3238	:base_core :base_mem :base_orig :base_math :base_loop
		3239	grepstart grepwhile mapstart mapwhile
		3240	sort time
		3241	));
1785		3242
1786	# here we export the classes and methods available to script code	3243	# here we export the classes and methods available to script code
1787		3244
1788	=pod	3245	=pod
1789		3246
1790	The following fucntions and emthods are available within a safe environment:	3247	The following functions and methods are available within a safe environment:
1791		3248
1792	cf::object contr pay_amount pay_player map	3249	cf::object
		3250	contr pay_amount pay_player map x y force_find force_add destroy
		3251	insert remove name archname title slaying race decrease split
		3252	value
		3253
1793	cf::object::player player	3254	cf::object::player
1794	cf::player peaceful	3255	player
1795	cf::map trigger	3256
		3257	cf::player
		3258	peaceful
		3259
		3260	cf::map
		3261	trigger
1796		3262
1797	=cut	3263	=cut
1798		3264
1799	for (	3265	for (
1800	["cf::object" => qw(contr pay_amount pay_player map)],	3266	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3267	insert remove inv nrof name archname title slaying race
		3268	decrease split destroy change_exp value msg lore send_msg)],
1801	["cf::object::player" => qw(player)],	3269	["cf::object::player" => qw(player)],
1802	["cf::player" => qw(peaceful)],	3270	["cf::player" => qw(peaceful send_msg)],
1803	["cf::map" => qw(trigger)],	3271	["cf::map" => qw(trigger)],
1804	) {	3272	) {
1805	no strict 'refs';	3273	no strict 'refs';
1806	my ($pkg, @funs) = @$_;	3274	my ($pkg, @funs) = @$_;
1807	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3275	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1825		3293
1826	my $qcode = $code;	3294	my $qcode = $code;
1827	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3295	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1828	$qcode =~ s/\n/\\n/g;	3296	$qcode =~ s/\n/\\n/g;
1829		3297
		3298	%vars = (_dummy => 0) unless %vars;
		3299
		3300	my @res;
1830	local $_;	3301	local $_;
1831	local @safe::cf::_safe_eval_args = values %vars;
1832		3302
1833	my $eval =	3303	my $eval =
1834	"do {\n"	3304	"do {\n"
1835	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3305	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1836	. "#line 0 \"{$qcode}\"\n"	3306	. "#line 0 \"{$qcode}\"\n"
1837	. $code	3307	. $code
1838	. "\n}"	3308	. "\n}"
1839	;	3309	;
1840		3310
		3311	if ($CFG{safe_eval}) {
1841	sub_generation_inc;	3312	sub_generation_inc;
		3313	local @safe::cf::_safe_eval_args = values %vars;
1842	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3314	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1843	sub_generation_inc;	3315	sub_generation_inc;
		3316	} else {
		3317	local @cf::_safe_eval_args = values %vars;
		3318	@res = wantarray ? eval eval : scalar eval $eval;
		3319	}
1844		3320
1845	if ($@) {	3321	if ($@) {
1846	warn "$@";	3322	warn "$@",
1847	warn "while executing safe code '$code'\n";	3323	"while executing safe code '$code'\n",
1848	warn "with arguments " . (join " ", %vars) . "\n";	3324	"with arguments " . (join " ", %vars) . "\n";
1849	}	3325	}
1850		3326
1851	wantarray ? @res : $res[0]	3327	wantarray ? @res : $res[0]
1852	}	3328	}
1853		3329
…		…
1867	=cut	3343	=cut
1868		3344
1869	sub register_script_function {	3345	sub register_script_function {
1870	my ($fun, $cb) = @_;	3346	my ($fun, $cb) = @_;
1871		3347
1872	no strict 'refs';	3348	$fun = "safe::$fun" if $CFG{safe_eval};
1873	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3349	*$fun = $safe_hole->wrap ($cb);
1874	}	3350	}
1875		3351
1876	=back	3352	=back
1877		3353
1878	=cut	3354	=cut
1879		3355
1880	#############################################################################	3356	#############################################################################
		3357	# the server's init and main functions
1881		3358
1882	=head2 EXTENSION DATABASE SUPPORT	3359	sub load_facedata($) {
		3360	my ($path) = @_;
1883		3361
1884	Crossfire maintains a very simple database for extension use. It can	3362	# HACK to clear player env face cache, we need some signal framework
1885	currently store anything that can be serialised using Storable, which	3363	# for this (global event?)
1886	excludes objects.	3364	%ext::player_env::MUSIC_FACE_CACHE = ();
1887		3365
1888	The parameter C<$family> should best start with the name of the extension	3366	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1889	using it, it should be unique.
1890		3367
1891	=over 4	3368	trace "loading facedata from $path\n";
1892		3369
1893	=item $hashref = cf::db_get $family	3370	my $facedata;
		3371	0 < aio_load $path, $facedata
		3372	or die "$path: $!";
1894		3373
1895	Return a hashref for use by the extension C<$family>, which can be	3374	$facedata = Coro::Storable::thaw $facedata;
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898		3375
1899	=item $value = cf::db_get $family => $key	3376	$facedata->{version} == 2
		3377	or cf::cleanup "$path: version mismatch, cannot proceed.";
1900		3378
1901	Returns a single value from the database	3379	# patch in the exptable
1902		3380	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1903	=item cf::db_put $family => $hashref	3381	$facedata->{resource}{"res/exp_table"} = {
1904		3382	type => FT_RSRC,
1905	Stores the given family hashref into the database. Updates are delayed, if	3383	data => $exp_table,
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3384	hash => (Digest::MD5::md5 $exp_table),
1907
1908	=item cf::db_put $family => $key => $value
1909
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920
1921	=cut
1922
1923	our $DB;
1924
1925	{
1926	my $path = cf::localdir . "/database.pst";
1927
1928	sub db_load() {
1929	$DB = stat $path ? Storable::retrieve $path : { };
1930	}
1931
1932	my $pid;
1933
1934	sub db_save() {
1935	waitpid $pid, 0 if $pid;
1936	if (0 == ($pid = fork)) {
1937	$DB->{_meta}{version} = 1;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});	3385	};
		3386	cf::cede_to_tick;
1954		3387
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}	3388	{
		3389	my $faces = $facedata->{faceinfo};
1959		3390
1960	sub db_get($;$) {	3391	while (my ($face, $info) = each %$faces) {
1961	@_ >= 2	3392	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965		3393
1966	sub db_put($$;$) {	3394	cf::face::set_visibility $idx, $info->{visibility};
1967	if (@_ >= 3) {	3395	cf::face::set_magicmap $idx, $info->{magicmap};
1968	$DB->{$_[0]}{$_[1]} = $_[2];	3396	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1969	} else {	3397	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974		3398
1975	cf::global->attach (	3399	cf::cede_to_tick;
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	3400	}
1980	);
1981	}
1982		3401
1983	#############################################################################	3402	while (my ($face, $info) = each %$faces) {
1984	# the server's main()	3403	next unless $info->{smooth};
1985		3404
1986	sub cfg_load {	3405	my $idx = cf::face::find $face
		3406	or next;
		3407
		3408	if (my $smooth = cf::face::find $info->{smooth}) {
		3409	cf::face::set_smooth $idx, $smooth;
		3410	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3411	} else {
		3412	error "smooth face '$info->{smooth}' not found for face '$face'";
		3413	}
		3414
		3415	cf::cede_to_tick;
		3416	}
		3417	}
		3418
		3419	{
		3420	my $anims = $facedata->{animinfo};
		3421
		3422	while (my ($anim, $info) = each %$anims) {
		3423	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3424	cf::cede_to_tick;
		3425	}
		3426
		3427	cf::anim::invalidate_all; # d'oh
		3428	}
		3429
		3430	{
		3431	my $res = $facedata->{resource};
		3432
		3433	while (my ($name, $info) = each %$res) {
		3434	if (defined $info->{type}) {
		3435	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3436
		3437	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3438	cf::face::set_type $idx, $info->{type};
		3439	} else {
		3440	$RESOURCE{$name} = $info; # unused
		3441	}
		3442
		3443	cf::cede_to_tick;
		3444	}
		3445	}
		3446
		3447	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3448
		3449	1
		3450	}
		3451
		3452	register_exticmd fx_want => sub {
		3453	my ($ns, $want) = @_;
		3454
		3455	while (my ($k, $v) = each %$want) {
		3456	$ns->fx_want ($k, $v);
		3457	}
		3458	};
		3459
		3460	sub load_resource_file($) {
		3461	my $guard = lock_acquire "load_resource_file";
		3462
		3463	my $status = load_resource_file_ $_[0];
		3464	get_slot 0.1, 100;
		3465	cf::arch::commit_load;
		3466
		3467	$status
		3468	}
		3469
		3470	sub reload_regions {
		3471	# HACK to clear player env face cache, we need some signal framework
		3472	# for this (global event?)
		3473	%ext::player_env::MUSIC_FACE_CACHE = ();
		3474
		3475	load_resource_file "$MAPDIR/regions"
		3476	or die "unable to load regions file\n";
		3477
		3478	for (cf::region::list) {
		3479	$_->{match} = qr/$_->{match}/
		3480	if exists $_->{match};
		3481	}
		3482	}
		3483
		3484	sub reload_facedata {
		3485	load_facedata "$DATADIR/facedata"
		3486	or die "unable to load facedata\n";
		3487	}
		3488
		3489	sub reload_archetypes {
		3490	load_resource_file "$DATADIR/archetypes"
		3491	or die "unable to load archetypes\n";
		3492	}
		3493
		3494	sub reload_treasures {
		3495	load_resource_file "$DATADIR/treasures"
		3496	or die "unable to load treasurelists\n";
		3497	}
		3498
		3499	sub reload_sound {
		3500	trace "loading sound config from $DATADIR/sound\n";
		3501
		3502	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3503	or die "$DATADIR/sound $!";
		3504
		3505	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3506
		3507	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3508	my $sound = $soundconf->{compat}[$_]
		3509	or next;
		3510
		3511	my $face = cf::face::find "sound/$sound->[1]";
		3512	cf::sound::set $sound->[0] => $face;
		3513	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3514	}
		3515
		3516	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3517	my $face = cf::face::find "sound/$v";
		3518	cf::sound::set $k => $face;
		3519	}
		3520	}
		3521
		3522	sub reload_resources {
		3523	trace "reloading resource files...\n";
		3524
		3525	reload_facedata;
		3526	reload_sound;
		3527	reload_archetypes;
		3528	reload_regions;
		3529	reload_treasures;
		3530
		3531	trace "finished reloading resource files\n";
		3532	}
		3533
		3534	sub reload_config {
		3535	trace "reloading config file...\n";
		3536
1987	open my $fh, "<:utf8", cf::confdir . "/config"	3537	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	3538	or return;
1989		3539
1990	local $/;	3540	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	3541	*CFG = YAML::XS::Load scalar <$fh>;
1992		3542
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3543	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3544
		3545	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3546	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1994		3547
1995	if (exists $CFG{mlockall}) {	3548	if (exists $CFG{mlockall}) {
1996	eval {	3549	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	3550	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	3551	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	3552	};
2000	warn $@ if $@;	3553	warn $@ if $@;
2001	}	3554	}
		3555
		3556	trace "finished reloading resource files\n";
		3557	}
		3558
		3559	sub pidfile() {
		3560	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3561	or die "$PIDFILE: $!";
		3562	flock $fh, &Fcntl::LOCK_EX
		3563	or die "$PIDFILE: flock: $!";
		3564	$fh
		3565	}
		3566
		3567	# make sure only one server instance is running at any one time
		3568	sub atomic {
		3569	my $fh = pidfile;
		3570
		3571	my $pid = <$fh>;
		3572	kill 9, $pid if $pid > 0;
		3573
		3574	seek $fh, 0, 0;
		3575	print $fh $$;
		3576	}
		3577
		3578	sub main_loop {
		3579	trace "EV::loop starting\n";
		3580	if (1) {
		3581	EV::loop;
		3582	}
		3583	trace "EV::loop returned\n";
		3584	goto &main_loop unless $REALLY_UNLOOP;
2002	}	3585	}
2003		3586
2004	sub main {	3587	sub main {
		3588	cf::init_globals; # initialise logging
		3589
		3590	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3591	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3592	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3593	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3594
		3595	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3596
2005	# we must not ever block the main coroutine	3597	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	3598	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3599	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	3600	(async {
2009	Event::one_event;	3601	$Coro::current->{desc} = "IDLE BUG HANDLER";
2010	})->();	3602	EV::loop EV::LOOP_ONESHOT;
		3603	})->prio (Coro::PRIO_MAX);
2011	};	3604	};
2012		3605
2013	cfg_load;	3606	evthread_start IO::AIO::poll_fileno;
2014	db_load;	3607
		3608	cf::sync_job {
		3609	cf::init_experience;
		3610	cf::init_anim;
		3611	cf::init_attackmess;
		3612	cf::init_dynamic;
		3613
		3614	cf::load_settings;
		3615	cf::load_materials;
		3616
		3617	reload_resources;
		3618	reload_config;
		3619	db_init;
		3620
		3621	cf::init_uuid;
		3622	cf::init_signals;
		3623	cf::init_skills;
		3624
		3625	cf::init_beforeplay;
		3626
		3627	atomic;
		3628
2015	load_extensions;	3629	load_extensions;
2016	Event::loop;	3630
		3631	utime time, time, $RUNTIMEFILE;
		3632
		3633	# no (long-running) fork's whatsoever before this point(!)
		3634	use POSIX ();
		3635	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3636
		3637	(pop @POST_INIT)->(0) while @POST_INIT;
		3638	};
		3639
		3640	cf::object::thawer::errors_are_fatal 0;
		3641	info "parse errors in files are no longer fatal from this point on.\n";
		3642
		3643	main_loop;
2017	}	3644	}
2018		3645
2019	#############################################################################	3646	#############################################################################
2020	# initialisation	3647	# initialisation and cleanup
2021		3648
		3649	# install some emergency cleanup handlers
		3650	BEGIN {
		3651	our %SIGWATCHER = ();
		3652	for my $signal (qw(INT HUP TERM)) {
		3653	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3654	cf::cleanup "SIG$signal";
		3655	};
		3656	}
		3657	}
		3658
		3659	sub write_runtime_sync {
		3660	my $t0 = AE::time;
		3661
		3662	# first touch the runtime file to show we are still running:
		3663	# the fsync below can take a very very long time.
		3664
		3665	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3666
		3667	my $guard = cf::lock_acquire "write_runtime";
		3668
		3669	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3670	or return;
		3671
		3672	my $value = $cf::RUNTIME + 90 + 10;
		3673	# 10 is the runtime save interval, for a monotonic clock
		3674	# 60 allows for the watchdog to kill the server.
		3675
		3676	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3677	and return;
		3678
		3679	# always fsync - this file is important
		3680	aio_fsync $fh
		3681	and return;
		3682
		3683	# touch it again to show we are up-to-date
		3684	aio_utime $fh, undef, undef;
		3685
		3686	close $fh
		3687	or return;
		3688
		3689	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3690	and return;
		3691
		3692	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3693
		3694	1
		3695	}
		3696
		3697	our $uuid_lock;
		3698	our $uuid_skip;
		3699
		3700	sub write_uuid_sync($) {
		3701	$uuid_skip ||= $_[0];
		3702
		3703	return if $uuid_lock;
		3704	local $uuid_lock = 1;
		3705
		3706	my $uuid = "$LOCALDIR/uuid";
		3707
		3708	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3709	or return;
		3710
		3711	my $value = uuid_seq uuid_cur;
		3712
		3713	unless ($value) {
		3714	info "cowardly refusing to write zero uuid value!\n";
		3715	return;
		3716	}
		3717
		3718	my $value = uuid_str $value + $uuid_skip;
		3719	$uuid_skip = 0;
		3720
		3721	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3722	and return;
		3723
		3724	# always fsync - this file is important
		3725	aio_fsync $fh
		3726	and return;
		3727
		3728	close $fh
		3729	or return;
		3730
		3731	aio_rename "$uuid~", $uuid
		3732	and return;
		3733
		3734	trace "uuid file written ($value).\n";
		3735
		3736	1
		3737
		3738	}
		3739
		3740	sub write_uuid($$) {
		3741	my ($skip, $sync) = @_;
		3742
		3743	$sync ? write_uuid_sync $skip
		3744	: async { write_uuid_sync $skip };
		3745	}
		3746
		3747	sub emergency_save() {
		3748	my $freeze_guard = cf::freeze_mainloop;
		3749
		3750	info "emergency_perl_save: enter\n";
		3751
		3752	cf::sync_job {
		3753	# this is a trade-off: we want to be very quick here, so
		3754	# save all maps without fsync, and later call a global sync
		3755	# (which in turn might be very very slow)
		3756	local $USE_FSYNC = 0;
		3757
		3758	# use a peculiar iteration method to avoid tripping on perl
		3759	# refcount bugs in for. also avoids problems with players
		3760	# and maps saved/destroyed asynchronously.
		3761	info "emergency_perl_save: begin player save\n";
		3762	for my $login (keys %cf::PLAYER) {
		3763	my $pl = $cf::PLAYER{$login} or next;
		3764	$pl->valid or next;
		3765	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3766	$pl->save;
		3767	}
		3768	info "emergency_perl_save: end player save\n";
		3769
		3770	info "emergency_perl_save: begin map save\n";
		3771	for my $path (keys %cf::MAP) {
		3772	my $map = $cf::MAP{$path} or next;
		3773	$map->valid or next;
		3774	$map->save;
		3775	}
		3776	info "emergency_perl_save: end map save\n";
		3777
		3778	info "emergency_perl_save: begin database checkpoint\n";
		3779	BDB::db_env_txn_checkpoint $DB_ENV;
		3780	info "emergency_perl_save: end database checkpoint\n";
		3781
		3782	info "emergency_perl_save: begin write uuid\n";
		3783	write_uuid_sync 1;
		3784	info "emergency_perl_save: end write uuid\n";
		3785	};
		3786
		3787	info "emergency_perl_save: starting sync()\n";
		3788	IO::AIO::aio_sync sub {
		3789	info "emergency_perl_save: finished sync()\n";
		3790	};
		3791
		3792	info "emergency_perl_save: leave\n";
		3793	}
		3794
		3795	sub post_cleanup {
		3796	my ($make_core) = @_;
		3797
		3798	error Carp::longmess "post_cleanup backtrace"
		3799	if $make_core;
		3800
		3801	my $fh = pidfile;
		3802	unlink $PIDFILE if <$fh> == $$;
		3803	}
		3804
		3805	# a safer delete_package, copied from Symbol
		3806	sub clear_package($) {
		3807	my $pkg = shift;
		3808
		3809	# expand to full symbol table name if needed
		3810	unless ($pkg =~ /^main::.*::$/) {
		3811	$pkg = "main$pkg" if $pkg =~ /^::/;
		3812	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3813	$pkg .= '::' unless $pkg =~ /::$/;
		3814	}
		3815
		3816	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3817	my $stem_symtab = *{$stem}{HASH};
		3818
		3819	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3820	or return;
		3821
		3822	# clear all symbols
		3823	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3824	for my $name (keys %$leaf_symtab) {
		3825	_gv_clear *{"$pkg$name"};
		3826	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3827	}
		3828	}
		3829
2022	sub reload() {	3830	sub do_reload_perl() {
2023	# can/must only be called in main	3831	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	3832	if (in_main) {
2025	warn "can only reload from main coroutine\n";	3833	error "can only reload from main coroutine";
2026	return;	3834	return;
2027	}	3835	}
2028		3836
		3837	return if $RELOAD++;
		3838
		3839	my $t1 = AE::time;
		3840
		3841	while ($RELOAD) {
2029	warn "reloading...";	3842	info "reloading...";
2030		3843
2031	local $FREEZE = 1;	3844	trace "entering sync_job";
		3845
		3846	cf::sync_job {
		3847	cf::write_runtime_sync; # external watchdog should not bark
2032	cf::emergency_save;	3848	cf::emergency_save;
		3849	cf::write_runtime_sync; # external watchdog should not bark
2033		3850
2034	eval {	3851	trace "syncing database to disk";
		3852	BDB::db_env_txn_checkpoint $DB_ENV;
		3853
2035	# if anything goes wrong in here, we should simply crash as we already saved	3854	# if anything goes wrong in here, we should simply crash as we already saved
2036		3855
2037	# cancel all watchers	3856	trace "flushing outstanding aio requests";
2038	for (Event::all_watchers) {	3857	while (IO::AIO::nreqs || BDB::nreqs) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	3858	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2040	}
2041
2042	# cancel all extension coros
2043	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();
2045
2046	# unload all extensions
2047	for (@exts) {
2048	warn "unloading <$_>";
2049	unload_extension $_;
2050	}
2051
2052	# unload all modules loaded from $LIBDIR
2053	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055
2056	warn "removing <$k>";
2057	delete $INC{$k};
2058
2059	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;
2061
2062	if (my $cb = $k->can ("unload_module")) {
2063	$cb->();
2064	}	3859	}
2065		3860
2066	Symbol::delete_package $k;	3861	trace "cancelling all extension coros";
		3862	$_->cancel for values %EXT_CORO;
		3863	%EXT_CORO = ();
		3864
		3865	trace "removing commands";
		3866	%COMMAND = ();
		3867
		3868	trace "removing ext/exti commands";
		3869	%EXTCMD = ();
		3870	%EXTICMD = ();
		3871
		3872	trace "unloading/nuking all extensions";
		3873	for my $pkg (@EXTS) {
		3874	trace "... unloading $pkg";
		3875
		3876	if (my $cb = $pkg->can ("unload")) {
		3877	eval {
		3878	$cb->($pkg);
		3879	1
		3880	} or error "$pkg unloaded, but with errors: $@";
		3881	}
		3882
		3883	trace "... clearing $pkg";
		3884	clear_package $pkg;
2067	}	3885	}
2068		3886
2069	# sync database to disk	3887	trace "unloading all perl modules loaded from $LIBDIR";
2070	cf::db_sync;	3888	while (my ($k, $v) = each %INC) {
2071	IO::AIO::flush;	3889	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2072		3890
		3891	trace "... unloading $k";
		3892	delete $INC{$k};
		3893
		3894	$k =~ s/\.pm$//;
		3895	$k =~ s/\//::/g;
		3896
		3897	if (my $cb = $k->can ("unload_module")) {
		3898	$cb->();
		3899	}
		3900
		3901	clear_package $k;
		3902	}
		3903
2073	# get rid of safe::, as good as possible	3904	trace "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	3905	clear_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3906	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		3907
2077	# remove register_script_function callbacks	3908	trace "unloading cf.pm \"a bit\"";
2078	# TODO
2079
2080	# unload cf.pm "a bit"
2081	delete $INC{"cf.pm"};	3909	delete $INC{"cf.pm"};
		3910	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2082		3911
2083	# don't, removes xs symbols, too,	3912	# don't, removes xs symbols, too,
2084	# and global variables created in xs	3913	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	3914	#clear_package __PACKAGE__;
2086		3915
2087	# reload cf.pm	3916	info "unload completed, starting to reload now";
		3917
2088	warn "reloading cf.pm";	3918	trace "reloading cf.pm";
2089	require cf;	3919	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3920	cf::_connect_to_perl_1;
2091		3921
2092	# load config and database again	3922	trace "loading config and database again";
2093	cf::cfg_load;	3923	cf::reload_config;
2094	cf::db_load;
2095		3924
2096	# load extensions
2097	warn "load extensions";	3925	trace "loading extensions";
2098	cf::load_extensions;	3926	cf::load_extensions;
2099		3927
2100	# reattach attachments to objects	3928	if ($REATTACH_ON_RELOAD) {
2101	warn "reattach";	3929	trace "reattaching attachments to objects/players";
2102	_global_reattach;	3930	_global_reattach; # objects, sockets
		3931	trace "reattaching attachments to maps";
		3932	reattach $_ for values %MAP;
		3933	trace "reattaching attachments to players";
		3934	reattach $_ for values %PLAYER;
		3935	}
		3936
		3937	trace "running post_init jobs";
		3938	(pop @POST_INIT)->(1) while @POST_INIT;
		3939
		3940	trace "leaving sync_job";
		3941
		3942	1
		3943	} or do {
		3944	error $@;
		3945	cf::cleanup "error while reloading, exiting.";
		3946	};
		3947
		3948	info "reloaded";
		3949	--$RELOAD;
		3950	}
		3951
		3952	$t1 = AE::time - $t1;
		3953	info "reload completed in ${t1}s\n";
		3954	};
		3955
		3956	our $RELOAD_WATCHER; # used only during reload
		3957
		3958	sub reload_perl() {
		3959	# doing reload synchronously and two reloads happen back-to-back,
		3960	# coro crashes during coro_state_free->destroy here.
		3961
		3962	$RELOAD_WATCHER ||= cf::async {
		3963	Coro::AIO::aio_wait cache_extensions;
		3964
		3965	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3966	do_reload_perl;
		3967	undef $RELOAD_WATCHER;
		3968	};
2103	};	3969	};
2104
2105	if ($@) {
2106	warn $@;
2107	warn "error while reloading, exiting.";
2108	exit 1;
2109	}
2110
2111	warn "reloaded successfully";
2112	};
2113
2114	#############################################################################
2115
2116	unless ($LINK_MAP) {
2117	$LINK_MAP = cf::map::new;
2118
2119	$LINK_MAP->width (41);
2120	$LINK_MAP->height (41);
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,
2129	cb => sub {
2130	$_[0]->w->cancel;
2131
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});
2150
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	3970	}
2156
2157	register "<global>", __PACKAGE__;
2158		3971
2159	register_command "reload" => sub {	3972	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	3973	my ($who, $arg) = @_;
2161		3974
2162	if ($who->flag (FLAG_WIZ)) {	3975	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	3976	$who->message ("reloading server.");
		3977	async {
		3978	$Coro::current->{desc} = "perl_reload";
		3979	reload_perl;
		3980	};
2166	}	3981	}
2167	};	3982	};
2168		3983
2169	unshift @INC, $LIBDIR;	3984	unshift @INC, $LIBDIR;
2170		3985
2171	$TICK_WATCHER = Event->timer (	3986	my $bug_warning = 0;
2172	reentrant => 0,	3987
2173	prio => 0,	3988	our @WAIT_FOR_TICK;
2174	at => $NEXT_TICK || $TICK,	3989	our @WAIT_FOR_TICK_BEGIN;
2175	data => WF_AUTOCANCEL,	3990
2176	cb => sub {	3991	sub wait_for_tick {
2177	unless ($FREEZE) {	3992	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3993
		3994	my $signal = new Coro::Signal;
		3995	push @WAIT_FOR_TICK, $signal;
		3996	$signal->wait;
		3997	}
		3998
		3999	sub wait_for_tick_begin {
		4000	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4001
		4002	my $signal = new Coro::Signal;
		4003	push @WAIT_FOR_TICK_BEGIN, $signal;
		4004	$signal->wait;
		4005	}
		4006
		4007	sub tick {
		4008	if ($Coro::current != $Coro::main) {
		4009	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4010	unless ++$bug_warning > 10;
		4011	return;
		4012	}
		4013
2178	cf::server_tick; # one server iteration	4014	cf::server_tick; # one server iteration
2179	$RUNTIME += $TICK;
2180	}
2181		4015
2182	$NEXT_TICK += $TICK;	4016	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2183		4017
2184	# if we are delayed by four ticks or more, skip them all	4018	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2185	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4019	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2186		4020	Coro::async_pool {
2187	$TICK_WATCHER->at ($NEXT_TICK);	4021	$Coro::current->{desc} = "runtime saver";
2188	$TICK_WATCHER->start;
2189	},
2190	);
2191
2192	IO::AIO::max_poll_time $TICK * 0.2;
2193
2194	Event->io (
2195	fd => IO::AIO::poll_fileno,
2196	poll => 'r',
2197	prio => 5,
2198	data => WF_AUTOCANCEL,
2199	cb => \&IO::AIO::poll_cb,
2200	);
2201
2202	Event->timer (
2203	data => WF_AUTOCANCEL,
2204	after => 0,
2205	interval => 10,
2206	cb => sub {
2207	(Coro::unblock_sub {
2208	write_runtime	4022	write_runtime_sync
2209	or warn "ERROR: unable to write runtime file: $!";	4023	or error "ERROR: unable to write runtime file: $!";
2210	})->();	4024	};
2211	},	4025	}
2212	);	4026
		4027	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4028	$sig->send;
		4029	}
		4030	while (my $sig = shift @WAIT_FOR_TICK) {
		4031	$sig->send;
		4032	}
		4033
		4034	$LOAD = ($NOW - $TICK_START) / $TICK;
		4035	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4036
		4037	if (0) {
		4038	if ($NEXT_TICK) {
		4039	my $jitter = $TICK_START - $NEXT_TICK;
		4040	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4041	debug "jitter $JITTER\n";#d#
		4042	}
		4043	}
		4044	}
		4045
		4046	{
		4047	# configure BDB
		4048
		4049	BDB::min_parallel 16;
		4050	BDB::max_poll_reqs $TICK * 0.1;
		4051	$AnyEvent::BDB::WATCHER->priority (1);
		4052
		4053	unless ($DB_ENV) {
		4054	$DB_ENV = BDB::db_env_create;
		4055	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4056	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4057	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4058	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4059	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4060
		4061	(Coro::async { # async to keep sync_job from complaining
		4062	cf::sync_job {
		4063	eval {
		4064	BDB::db_env_open
		4065	$DB_ENV,
		4066	$BDBDIR,
		4067	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4068	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4069	0666;
		4070
		4071	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4072	};
		4073
		4074	cf::cleanup "db_env_open(db): $@" if $@;
		4075	};
		4076	})->join;
		4077	}
		4078
		4079	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4080	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4081	};
		4082	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4083	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4084	};
		4085	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4086	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4087	};
		4088	}
		4089
		4090	{
		4091	# configure IO::AIO
		4092
		4093	IO::AIO::min_parallel 8;
		4094	IO::AIO::max_poll_time $TICK * 0.1;
		4095	undef $AnyEvent::AIO::WATCHER;
		4096	}
		4097
		4098	my $_log_backtrace;
		4099
		4100	sub _log_backtrace {
		4101	my ($msg, @addr) = @_;
		4102
		4103	$msg =~ s/\n//;
		4104
		4105	# limit the # of concurrent backtraces
		4106	if ($_log_backtrace < 2) {
		4107	++$_log_backtrace;
		4108	my $perl_bt = Carp::longmess $msg;
		4109	async {
		4110	$Coro::current->{desc} = "abt $msg";
		4111
		4112	my @bt = fork_call {
		4113	@addr = map { sprintf "%x", $_ } @addr;
		4114	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4115	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4116	or die "addr2line: $!";
		4117
		4118	my @funcs;
		4119	my @res = <$fh>;
		4120	chomp for @res;
		4121	while (@res) {
		4122	my ($func, $line) = splice @res, 0, 2, ();
		4123	push @funcs, "[$func] $line";
		4124	}
		4125
		4126	@funcs
		4127	};
		4128
		4129	LOG llevInfo, "[ABT] $perl_bt\n";
		4130	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4131	LOG llevInfo, "[ABT] $_\n" for @bt;
		4132	--$_log_backtrace;
		4133	};
		4134	} else {
		4135	LOG llevInfo, "[ABT] $msg\n";
		4136	LOG llevInfo, "[ABT] [suppressed]\n";
		4137	}
		4138	}
		4139
		4140	# load additional modules
		4141	require "cf/$_.pm" for @EXTRA_MODULES;
		4142	cf::_connect_to_perl_2;
2213		4143
2214	END { cf::emergency_save }	4144	END { cf::emergency_save }
2215		4145
2216	1	4146	1
2217		4147

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